21148492040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40670177}}^1$

素因数の和:40670201

約数の個数: 32

約数和(自身を含む): 51244424280

約数和(自身を除く): 30095932240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 40670177, 81340354, 162680708, 203350885, 325361416, 406701770, 528712301, 813403540, 1057424602, 1626807080, 2114849204, 2643561505, 4229698408, 5287123010, 10574246020, 21148492040]

約数ペア:

[(1, 21148492040), (2, 10574246020), (4, 5287123010), (5, 4229698408), (8, 2643561505), (10, 2114849204), (13, 1626807080), (20, 1057424602), (26, 813403540), (40, 528712301), (52, 406701770), (65, 325361416), (104, 203350885), (130, 162680708), (260, 81340354), (520, 40670177)]