77886890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{5189}}^1$

素因数の和:5294

約数の個数: 32

約数和(自身を含む): 149472000

約数和(自身を除く): 71585110

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 395, 790, 1501, 3002, 5189, 7505, 10378, 15010, 25945, 51890, 98591, 197182, 409931, 492955, 819862, 985910, 2049655, 4099310, 7788689, 15577378, 38943445, 77886890]

約数ペア:

[(1, 77886890), (2, 38943445), (5, 15577378), (10, 7788689), (19, 4099310), (38, 2049655), (79, 985910), (95, 819862), (158, 492955), (190, 409931), (395, 197182), (790, 98591), (1501, 51890), (3002, 25945), (5189, 15010), (7505, 10378)]