20171320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38791}}^1$

素因数の和:38815

約数の個数: 32

約数和(自身を含む): 48877920

約数和(自身を除く): 28706600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38791, 77582, 155164, 193955, 310328, 387910, 504283, 775820, 1008566, 1551640, 2017132, 2521415, 4034264, 5042830, 10085660, 20171320]

約数ペア:

[(1, 20171320), (2, 10085660), (4, 5042830), (5, 4034264), (8, 2521415), (10, 2017132), (13, 1551640), (20, 1008566), (26, 775820), (40, 504283), (52, 387910), (65, 310328), (104, 193955), (130, 155164), (260, 77582), (520, 38791)]