320621080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{616579}}^1$

素因数の和:616603

約数の個数: 32

約数和(自身を含む): 776890800

約数和(自身を除く): 456269720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 616579, 1233158, 2466316, 3082895, 4932632, 6165790, 8015527, 12331580, 16031054, 24663160, 32062108, 40077635, 64124216, 80155270, 160310540, 320621080]

約数ペア:

[(1, 320621080), (2, 160310540), (4, 80155270), (5, 64124216), (8, 40077635), (10, 32062108), (13, 24663160), (20, 16031054), (26, 12331580), (40, 8015527), (52, 6165790), (65, 4932632), (104, 3082895), (130, 2466316), (260, 1233158), (520, 616579)]