12779920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9397}}^1$

素因数の和:9427

約数の個数: 40

約数和(自身を含む): 31464504

約数和(自身を除く): 18684584

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9397, 18794, 37588, 46985, 75176, 93970, 150352, 159749, 187940, 319498, 375880, 638996, 751760, 798745, 1277992, 1597490, 2555984, 3194980, 6389960, 12779920]

約数ペア:

[(1, 12779920), (2, 6389960), (4, 3194980), (5, 2555984), (8, 1597490), (10, 1277992), (16, 798745), (17, 751760), (20, 638996), (34, 375880), (40, 319498), (68, 187940), (80, 159749), (85, 150352), (136, 93970), (170, 75176), (272, 46985), (340, 37588), (680, 18794), (1360, 9397)]