221670540

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{347}}^1$

素因数の和:398

約数の個数: 288

約数和(自身を含む): 855912960

約数和(自身を除く): 634242420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 169, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 338, 347, 351, 364, 378, 390, 420, 455, 468, 507, 540, 546, 585, 630, 676, 694, 702, 756, 780, 819, 845, 910, 945, 1014, 1041, 1092, 1170, 1183, 1260, 1365, 1388, 1404, 1521, 1638, 1690, 1735, 1755, 1820, 1890, 2028, 2082, 2340, 2366, 2429, 2457, 2535, 2730, 3042, 3123, 3276, 3380, 3470, 3510, 3549, 3780, 4095, 4164, 4511, 4563, 4732, 4858, 4914, 5070, 5205, 5460, 5915, 6084, 6246, 6940, 7020, 7098, 7287, 7605, 8190, 9022, 9126, 9369, 9716, 9828, 10140, 10410, 10647, 11830, 12145, 12285, 12492, 13533, 14196, 14574, 15210, 15615, 16380, 17745, 18044, 18252, 18738, 20820, 21294, 21861, 22555, 22815, 23660, 24290, 24570, 27066, 29148, 30420, 31230, 31577, 31941, 35490, 36435, 37476, 40599, 42588, 43722, 45110, 45630, 46845, 48580, 49140, 53235, 54132, 58643, 62460, 63154, 63882, 65583, 67665, 70980, 72870, 81198, 87444, 90220, 91260, 93690, 94731, 106470, 109305, 117286, 121797, 126308, 127764, 131166, 135330, 145740, 157885, 159705, 162396, 175929, 187380, 189462, 202995, 212940, 218610, 234572, 243594, 262332, 270660, 284193, 293215, 315770, 319410, 327915, 351858, 378924, 405990, 410501, 437220, 473655, 487188, 527787, 568386, 586430, 608985, 631540, 638820, 655830, 703716, 811980, 821002, 852579, 879645, 947310, 1055574, 1136772, 1172860, 1217970, 1231503, 1311660, 1420965, 1583361, 1642004, 1705158, 1759290, 1894620, 2052505, 2111148, 2435940, 2463006, 2638935, 2841930, 3166722, 3410316, 3518580, 3694509, 4105010, 4262895, 4926012, 5277870, 5683860, 6157515, 6333444, 7389018, 7916805, 8210020, 8525790, 10555740, 11083527, 12315030, 14778036, 15833610, 17051580, 18472545, 22167054, 24630060, 31667220, 36945090, 44334108, 55417635, 73890180, 110835270, 221670540]

約数ペア:

[(1, 221670540), (2, 110835270), (3, 73890180), (4, 55417635), (5, 44334108), (6, 36945090), (7, 31667220), (9, 24630060), (10, 22167054), (12, 18472545), (13, 17051580), (14, 15833610), (15, 14778036), (18, 12315030), (20, 11083527), (21, 10555740), (26, 8525790), (27, 8210020), (28, 7916805), (30, 7389018), (35, 6333444), (36, 6157515), (39, 5683860), (42, 5277870), (45, 4926012), (52, 4262895), (54, 4105010), (60, 3694509), (63, 3518580), (65, 3410316), (70, 3166722), (78, 2841930), (84, 2638935), (90, 2463006), (91, 2435940), (105, 2111148), (108, 2052505), (117, 1894620), (126, 1759290), (130, 1705158), (135, 1642004), (140, 1583361), (156, 1420965), (169, 1311660), (180, 1231503), (182, 1217970), (189, 1172860), (195, 1136772), (210, 1055574), (234, 947310), (252, 879645), (260, 852579), (270, 821002), (273, 811980), (315, 703716), (338, 655830), (347, 638820), (351, 631540), (364, 608985), (378, 586430), (390, 568386), (420, 527787), (455, 487188), (468, 473655), (507, 437220), (540, 410501), (546, 405990), (585, 378924), (630, 351858), (676, 327915), (694, 319410), (702, 315770), (756, 293215), (780, 284193), (819, 270660), (845, 262332), (910, 243594), (945, 234572), (1014, 218610), (1041, 212940), (1092, 202995), (1170, 189462), (1183, 187380), (1260, 175929), (1365, 162396), (1388, 159705), (1404, 157885), (1521, 145740), (1638, 135330), (1690, 131166), (1735, 127764), (1755, 126308), (1820, 121797), (1890, 117286), (2028, 109305), (2082, 106470), (2340, 94731), (2366, 93690), (2429, 91260), (2457, 90220), (2535, 87444), (2730, 81198), (3042, 72870), (3123, 70980), (3276, 67665), (3380, 65583), (3470, 63882), (3510, 63154), (3549, 62460), (3780, 58643), (4095, 54132), (4164, 53235), (4511, 49140), (4563, 48580), (4732, 46845), (4858, 45630), (4914, 45110), (5070, 43722), (5205, 42588), (5460, 40599), (5915, 37476), (6084, 36435), (6246, 35490), (6940, 31941), (7020, 31577), (7098, 31230), (7287, 30420), (7605, 29148), (8190, 27066), (9022, 24570), (9126, 24290), (9369, 23660), (9716, 22815), (9828, 22555), (10140, 21861), (10410, 21294), (10647, 20820), (11830, 18738), (12145, 18252), (12285, 18044), (12492, 17745), (13533, 16380), (14196, 15615), (14574, 15210)]