289350460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2066789}}^1$

素因数の和:2066805

約数の個数: 24

約数和(自身を含む): 694441440

約数和(自身を除く): 405090980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2066789, 4133578, 8267156, 10333945, 14467523, 20667890, 28935046, 41335780, 57870092, 72337615, 144675230, 289350460]

約数ペア:

[(1, 289350460), (2, 144675230), (4, 72337615), (5, 57870092), (7, 41335780), (10, 28935046), (14, 20667890), (20, 14467523), (28, 10333945), (35, 8267156), (70, 4133578), (140, 2066789)]