291288811640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{72101191}}^1$

素因数の和:72101303

約数の個数: 32

約数和(自身を含む): 661888942560

約数和(自身を除く): 370600130920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 72101191, 144202382, 288404764, 360505955, 576809528, 721011910, 1442023820, 2884047640, 7282220291, 14564440582, 29128881164, 36411101455, 58257762328, 72822202910, 145644405820, 291288811640]

約数ペア:

[(1, 291288811640), (2, 145644405820), (4, 72822202910), (5, 58257762328), (8, 36411101455), (10, 29128881164), (20, 14564440582), (40, 7282220291), (101, 2884047640), (202, 1442023820), (404, 721011910), (505, 576809528), (808, 360505955), (1010, 288404764), (2020, 144202382), (4040, 72101191)]