1668894920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:305

約数の個数: 288

約数和(自身を含む): 4977987840

約数和(自身を除く): 3309092920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 49, 55, 56, 62, 70, 77, 88, 98, 110, 121, 124, 140, 154, 155, 196, 217, 220, 227, 242, 245, 248, 280, 308, 310, 341, 385, 392, 434, 440, 454, 484, 490, 539, 605, 616, 620, 682, 770, 847, 868, 908, 968, 980, 1078, 1085, 1135, 1210, 1240, 1364, 1519, 1540, 1589, 1694, 1705, 1736, 1816, 1960, 2156, 2170, 2270, 2387, 2420, 2497, 2695, 2728, 3038, 3080, 3178, 3388, 3410, 3751, 4235, 4312, 4340, 4540, 4774, 4840, 4994, 5390, 5929, 6076, 6356, 6776, 6820, 7037, 7502, 7595, 7945, 8470, 8680, 9080, 9548, 9988, 10780, 11123, 11858, 11935, 12152, 12485, 12712, 13640, 14074, 15004, 15190, 15890, 16709, 16940, 17479, 18755, 19096, 19976, 21560, 22246, 23716, 23870, 24970, 26257, 27467, 28148, 29645, 30008, 30380, 31780, 33418, 33880, 34958, 35185, 37510, 44492, 47432, 47740, 49259, 49940, 52514, 54934, 55615, 56296, 59290, 60760, 63560, 66836, 69916, 70370, 75020, 77407, 83545, 87395, 88984, 95480, 98518, 99880, 105028, 109868, 111230, 118580, 122353, 131285, 133672, 137335, 139832, 140740, 150040, 154814, 167090, 174790, 183799, 192269, 197036, 210056, 219736, 222460, 237160, 244706, 246295, 262570, 274670, 281480, 309628, 334180, 344813, 349580, 367598, 384538, 387035, 394072, 444920, 489412, 492590, 525140, 541849, 549340, 611765, 619256, 668360, 689626, 699160, 735196, 769076, 774070, 851477, 918995, 961345, 978824, 985180, 1050280, 1083698, 1098680, 1223530, 1345883, 1379252, 1470392, 1538152, 1548140, 1702954, 1724065, 1837990, 1922690, 1970360, 2167396, 2447060, 2691766, 2709245, 2758504, 3096280, 3405908, 3448130, 3675980, 3792943, 3845380, 4257385, 4334792, 4894120, 5383532, 5418490, 5960339, 6729415, 6811816, 6896260, 7351960, 7585886, 7690760, 8514770, 10767064, 10836980, 11920678, 13458830, 13792520, 15171772, 17029540, 18964715, 21673960, 23841356, 26917660, 29801695, 30343544, 34059080, 37929430, 41722373, 47682712, 53835320, 59603390, 75858860, 83444746, 119206780, 151717720, 166889492, 208611865, 238413560, 333778984, 417223730, 834447460, 1668894920]

約数ペア:

[(1, 1668894920), (2, 834447460), (4, 417223730), (5, 333778984), (7, 238413560), (8, 208611865), (10, 166889492), (11, 151717720), (14, 119206780), (20, 83444746), (22, 75858860), (28, 59603390), (31, 53835320), (35, 47682712), (40, 41722373), (44, 37929430), (49, 34059080), (55, 30343544), (56, 29801695), (62, 26917660), (70, 23841356), (77, 21673960), (88, 18964715), (98, 17029540), (110, 15171772), (121, 13792520), (124, 13458830), (140, 11920678), (154, 10836980), (155, 10767064), (196, 8514770), (217, 7690760), (220, 7585886), (227, 7351960), (242, 6896260), (245, 6811816), (248, 6729415), (280, 5960339), (308, 5418490), (310, 5383532), (341, 4894120), (385, 4334792), (392, 4257385), (434, 3845380), (440, 3792943), (454, 3675980), (484, 3448130), (490, 3405908), (539, 3096280), (605, 2758504), (616, 2709245), (620, 2691766), (682, 2447060), (770, 2167396), (847, 1970360), (868, 1922690), (908, 1837990), (968, 1724065), (980, 1702954), (1078, 1548140), (1085, 1538152), (1135, 1470392), (1210, 1379252), (1240, 1345883), (1364, 1223530), (1519, 1098680), (1540, 1083698), (1589, 1050280), (1694, 985180), (1705, 978824), (1736, 961345), (1816, 918995), (1960, 851477), (2156, 774070), (2170, 769076), (2270, 735196), (2387, 699160), (2420, 689626), (2497, 668360), (2695, 619256), (2728, 611765), (3038, 549340), (3080, 541849), (3178, 525140), (3388, 492590), (3410, 489412), (3751, 444920), (4235, 394072), (4312, 387035), (4340, 384538), (4540, 367598), (4774, 349580), (4840, 344813), (4994, 334180), (5390, 309628), (5929, 281480), (6076, 274670), (6356, 262570), (6776, 246295), (6820, 244706), (7037, 237160), (7502, 222460), (7595, 219736), (7945, 210056), (8470, 197036), (8680, 192269), (9080, 183799), (9548, 174790), (9988, 167090), (10780, 154814), (11123, 150040), (11858, 140740), (11935, 139832), (12152, 137335), (12485, 133672), (12712, 131285), (13640, 122353), (14074, 118580), (15004, 111230), (15190, 109868), (15890, 105028), (16709, 99880), (16940, 98518), (17479, 95480), (18755, 88984), (19096, 87395), (19976, 83545), (21560, 77407), (22246, 75020), (23716, 70370), (23870, 69916), (24970, 66836), (26257, 63560), (27467, 60760), (28148, 59290), (29645, 56296), (30008, 55615), (30380, 54934), (31780, 52514), (33418, 49940), (33880, 49259), (34958, 47740), (35185, 47432), (37510, 44492)]