285979960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{701}}^1$

素因数の和:797

約数の個数: 128

約数和(自身を含む): 776355840

約数和(自身を除く): 490375880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 47, 56, 62, 70, 94, 124, 140, 155, 188, 217, 235, 248, 280, 310, 329, 376, 434, 470, 620, 658, 701, 868, 940, 1085, 1240, 1316, 1402, 1457, 1645, 1736, 1880, 2170, 2632, 2804, 2914, 3290, 3505, 4340, 4907, 5608, 5828, 6580, 7010, 7285, 8680, 9814, 10199, 11656, 13160, 14020, 14570, 19628, 20398, 21731, 24535, 28040, 29140, 32947, 39256, 40796, 43462, 49070, 50995, 58280, 65894, 81592, 86924, 98140, 101990, 108655, 131788, 152117, 164735, 173848, 196280, 203980, 217310, 230629, 263576, 304234, 329470, 407960, 434620, 461258, 608468, 658940, 760585, 869240, 922516, 1021357, 1153145, 1216936, 1317880, 1521170, 1845032, 2042714, 2306290, 3042340, 4085428, 4612580, 5106785, 6084680, 7149499, 8170856, 9225160, 10213570, 14298998, 20427140, 28597996, 35747495, 40854280, 57195992, 71494990, 142989980, 285979960]

約数ペア:

[(1, 285979960), (2, 142989980), (4, 71494990), (5, 57195992), (7, 40854280), (8, 35747495), (10, 28597996), (14, 20427140), (20, 14298998), (28, 10213570), (31, 9225160), (35, 8170856), (40, 7149499), (47, 6084680), (56, 5106785), (62, 4612580), (70, 4085428), (94, 3042340), (124, 2306290), (140, 2042714), (155, 1845032), (188, 1521170), (217, 1317880), (235, 1216936), (248, 1153145), (280, 1021357), (310, 922516), (329, 869240), (376, 760585), (434, 658940), (470, 608468), (620, 461258), (658, 434620), (701, 407960), (868, 329470), (940, 304234), (1085, 263576), (1240, 230629), (1316, 217310), (1402, 203980), (1457, 196280), (1645, 173848), (1736, 164735), (1880, 152117), (2170, 131788), (2632, 108655), (2804, 101990), (2914, 98140), (3290, 86924), (3505, 81592), (4340, 65894), (4907, 58280), (5608, 50995), (5828, 49070), (6580, 43462), (7010, 40796), (7285, 39256), (8680, 32947), (9814, 29140), (10199, 28040), (11656, 24535), (13160, 21731), (14020, 20398), (14570, 19628)]