79347640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18199}}^1$

素因数の和:18319

約数の個数: 32

約数和(自身を含む): 180180000

約数和(自身を除く): 100832360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 18199, 36398, 72796, 90995, 145592, 181990, 363980, 727960, 1983691, 3967382, 7934764, 9918455, 15869528, 19836910, 39673820, 79347640]

約数ペア:

[(1, 79347640), (2, 39673820), (4, 19836910), (5, 15869528), (8, 9918455), (10, 7934764), (20, 3967382), (40, 1983691), (109, 727960), (218, 363980), (436, 181990), (545, 145592), (872, 90995), (1090, 72796), (2180, 36398), (4360, 18199)]