15391760

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{457}}^1$

素因数の和:891

約数の個数: 40

約数和(自身を含む): 35949336

約数和(自身を除く): 20557576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 457, 842, 914, 1684, 1828, 2105, 2285, 3368, 3656, 4210, 4570, 6736, 7312, 8420, 9140, 16840, 18280, 33680, 36560, 192397, 384794, 769588, 961985, 1539176, 1923970, 3078352, 3847940, 7695880, 15391760]

約数ペア:

[(1, 15391760), (2, 7695880), (4, 3847940), (5, 3078352), (8, 1923970), (10, 1539176), (16, 961985), (20, 769588), (40, 384794), (80, 192397), (421, 36560), (457, 33680), (842, 18280), (914, 16840), (1684, 9140), (1828, 8420), (2105, 7312), (2285, 6736), (3368, 4570), (3656, 4210)]