77945660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{859}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 176988000

約数和(自身を除く): 99042340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 349, 698, 859, 1396, 1718, 1745, 3436, 3490, 4295, 4537, 6980, 8590, 9074, 11167, 17180, 18148, 22334, 22685, 44668, 45370, 55835, 90740, 111670, 223340, 299791, 599582, 1199164, 1498955, 2997910, 3897283, 5995820, 7794566, 15589132, 19486415, 38972830, 77945660]

約数ペア:

[(1, 77945660), (2, 38972830), (4, 19486415), (5, 15589132), (10, 7794566), (13, 5995820), (20, 3897283), (26, 2997910), (52, 1498955), (65, 1199164), (130, 599582), (260, 299791), (349, 223340), (698, 111670), (859, 90740), (1396, 55835), (1718, 45370), (1745, 44668), (3436, 22685), (3490, 22334), (4295, 18148), (4537, 17180), (6980, 11167), (8590, 9074)]