77891320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149791}}^1$

素因数の和:149815

約数の個数: 32

約数和(自身を含む): 188737920

約数和(自身を除く): 110846600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 149791, 299582, 599164, 748955, 1198328, 1497910, 1947283, 2995820, 3894566, 5991640, 7789132, 9736415, 15578264, 19472830, 38945660, 77891320]

約数ペア:

[(1, 77891320), (2, 38945660), (4, 19472830), (5, 15578264), (8, 9736415), (10, 7789132), (13, 5991640), (20, 3894566), (26, 2995820), (40, 1947283), (52, 1497910), (65, 1198328), (104, 748955), (130, 599164), (260, 299582), (520, 149791)]