137579960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{491357}}^1$

素因数の和:491375

約数の個数: 32

約数和(自身を含む): 353777760

約数和(自身を除く): 216197800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 491357, 982714, 1965428, 2456785, 3439499, 3930856, 4913570, 6878998, 9827140, 13757996, 17197495, 19654280, 27515992, 34394990, 68789980, 137579960]

約数ペア:

[(1, 137579960), (2, 68789980), (4, 34394990), (5, 27515992), (7, 19654280), (8, 17197495), (10, 13757996), (14, 9827140), (20, 6878998), (28, 4913570), (35, 3930856), (40, 3439499), (56, 2456785), (70, 1965428), (140, 982714), (280, 491357)]