219890440

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 256

約数和(自身を含む): 663552000

約数和(自身を除く): 443661560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 47, 49, 55, 56, 62, 70, 77, 88, 94, 98, 110, 124, 140, 154, 155, 188, 196, 217, 220, 235, 245, 248, 280, 308, 310, 329, 341, 343, 376, 385, 392, 434, 440, 470, 490, 517, 539, 616, 620, 658, 682, 686, 770, 868, 940, 980, 1034, 1078, 1085, 1240, 1316, 1364, 1372, 1457, 1519, 1540, 1645, 1705, 1715, 1736, 1880, 1960, 2068, 2156, 2170, 2303, 2387, 2585, 2632, 2695, 2728, 2744, 2914, 3038, 3080, 3290, 3410, 3430, 3619, 3773, 4136, 4312, 4340, 4606, 4774, 5170, 5390, 5828, 6076, 6580, 6820, 6860, 7238, 7285, 7546, 7595, 8680, 9212, 9548, 10199, 10340, 10633, 10780, 11515, 11656, 11935, 12152, 13160, 13640, 13720, 14476, 14570, 15092, 15190, 16027, 16121, 16709, 18095, 18424, 18865, 19096, 20398, 20680, 21266, 21560, 23030, 23870, 25333, 28952, 29140, 30184, 30380, 32054, 32242, 33418, 36190, 37730, 40796, 42532, 46060, 47740, 50666, 50995, 53165, 58280, 60760, 64108, 64484, 66836, 71393, 72380, 75460, 80135, 80605, 81592, 83545, 85064, 92120, 95480, 101332, 101990, 106330, 112189, 116963, 126665, 128216, 128968, 133672, 142786, 144760, 150920, 160270, 161210, 167090, 177331, 202664, 203980, 212660, 224378, 233926, 253330, 285572, 320540, 322420, 334180, 354662, 356965, 407960, 425320, 448756, 467852, 499751, 506660, 560945, 571144, 584815, 641080, 644840, 668360, 709324, 713930, 785323, 886655, 897512, 935704, 999502, 1013320, 1121890, 1169630, 1418648, 1427860, 1570646, 1773310, 1999004, 2243780, 2339260, 2498755, 2855720, 3141292, 3546620, 3926615, 3998008, 4487560, 4678520, 4997510, 5497261, 6282584, 7093240, 7853230, 9995020, 10994522, 15706460, 19990040, 21989044, 27486305, 31412920, 43978088, 54972610, 109945220, 219890440]

約数ペア:

[(1, 219890440), (2, 109945220), (4, 54972610), (5, 43978088), (7, 31412920), (8, 27486305), (10, 21989044), (11, 19990040), (14, 15706460), (20, 10994522), (22, 9995020), (28, 7853230), (31, 7093240), (35, 6282584), (40, 5497261), (44, 4997510), (47, 4678520), (49, 4487560), (55, 3998008), (56, 3926615), (62, 3546620), (70, 3141292), (77, 2855720), (88, 2498755), (94, 2339260), (98, 2243780), (110, 1999004), (124, 1773310), (140, 1570646), (154, 1427860), (155, 1418648), (188, 1169630), (196, 1121890), (217, 1013320), (220, 999502), (235, 935704), (245, 897512), (248, 886655), (280, 785323), (308, 713930), (310, 709324), (329, 668360), (341, 644840), (343, 641080), (376, 584815), (385, 571144), (392, 560945), (434, 506660), (440, 499751), (470, 467852), (490, 448756), (517, 425320), (539, 407960), (616, 356965), (620, 354662), (658, 334180), (682, 322420), (686, 320540), (770, 285572), (868, 253330), (940, 233926), (980, 224378), (1034, 212660), (1078, 203980), (1085, 202664), (1240, 177331), (1316, 167090), (1364, 161210), (1372, 160270), (1457, 150920), (1519, 144760), (1540, 142786), (1645, 133672), (1705, 128968), (1715, 128216), (1736, 126665), (1880, 116963), (1960, 112189), (2068, 106330), (2156, 101990), (2170, 101332), (2303, 95480), (2387, 92120), (2585, 85064), (2632, 83545), (2695, 81592), (2728, 80605), (2744, 80135), (2914, 75460), (3038, 72380), (3080, 71393), (3290, 66836), (3410, 64484), (3430, 64108), (3619, 60760), (3773, 58280), (4136, 53165), (4312, 50995), (4340, 50666), (4606, 47740), (4774, 46060), (5170, 42532), (5390, 40796), (5828, 37730), (6076, 36190), (6580, 33418), (6820, 32242), (6860, 32054), (7238, 30380), (7285, 30184), (7546, 29140), (7595, 28952), (8680, 25333), (9212, 23870), (9548, 23030), (10199, 21560), (10340, 21266), (10633, 20680), (10780, 20398), (11515, 19096), (11656, 18865), (11935, 18424), (12152, 18095), (13160, 16709), (13640, 16121), (13720, 16027), (14476, 15190), (14570, 15092)]