56571320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108791}}^1$

素因数の和:108815

約数の個数: 32

約数和(自身を含む): 137077920

約数和(自身を除く): 80506600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 108791, 217582, 435164, 543955, 870328, 1087910, 1414283, 2175820, 2828566, 4351640, 5657132, 7071415, 11314264, 14142830, 28285660, 56571320]

約数ペア:

[(1, 56571320), (2, 28285660), (4, 14142830), (5, 11314264), (8, 7071415), (10, 5657132), (13, 4351640), (20, 2828566), (26, 2175820), (40, 1414283), (52, 1087910), (65, 870328), (104, 543955), (130, 435164), (260, 217582), (520, 108791)]