20120690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1667}}^1$

素因数の和:1762

約数の個数: 32

約数和(自身を含む): 38911104

約数和(自身を除く): 18790414

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 142, 170, 355, 710, 1207, 1667, 2414, 3334, 6035, 8335, 12070, 16670, 28339, 56678, 118357, 141695, 236714, 283390, 591785, 1183570, 2012069, 4024138, 10060345, 20120690]

約数ペア:

[(1, 20120690), (2, 10060345), (5, 4024138), (10, 2012069), (17, 1183570), (34, 591785), (71, 283390), (85, 236714), (142, 141695), (170, 118357), (355, 56678), (710, 28339), (1207, 16670), (1667, 12070), (2414, 8335), (3334, 6035)]