325520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:339

約数の個数: 40

約数和(自身を含む): 817656

約数和(自身を除く): 492136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 313, 520, 626, 1040, 1252, 1565, 2504, 3130, 4069, 5008, 6260, 8138, 12520, 16276, 20345, 25040, 32552, 40690, 65104, 81380, 162760, 325520]

約数ペア:

[(1, 325520), (2, 162760), (4, 81380), (5, 65104), (8, 40690), (10, 32552), (13, 25040), (16, 20345), (20, 16276), (26, 12520), (40, 8138), (52, 6260), (65, 5008), (80, 4069), (104, 3130), (130, 2504), (208, 1565), (260, 1252), (313, 1040), (520, 626)]