16236920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{563}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 42232320

約数和(自身を除く): 25995400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 563, 721, 824, 1030, 1126, 1442, 2060, 2252, 2815, 2884, 3605, 3941, 4120, 4504, 5630, 5768, 7210, 7882, 11260, 14420, 15764, 19705, 22520, 28840, 31528, 39410, 57989, 78820, 115978, 157640, 231956, 289945, 405923, 463912, 579890, 811846, 1159780, 1623692, 2029615, 2319560, 3247384, 4059230, 8118460, 16236920]

約数ペア:

[(1, 16236920), (2, 8118460), (4, 4059230), (5, 3247384), (7, 2319560), (8, 2029615), (10, 1623692), (14, 1159780), (20, 811846), (28, 579890), (35, 463912), (40, 405923), (56, 289945), (70, 231956), (103, 157640), (140, 115978), (206, 78820), (280, 57989), (412, 39410), (515, 31528), (563, 28840), (721, 22520), (824, 19705), (1030, 15764), (1126, 14420), (1442, 11260), (2060, 7882), (2252, 7210), (2815, 5768), (2884, 5630), (3605, 4504), (3941, 4120)]