2456920

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 5572800

約数和(自身を除く): 3115880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 257, 478, 514, 956, 1028, 1195, 1285, 1912, 2056, 2390, 2570, 4780, 5140, 9560, 10280, 61423, 122846, 245692, 307115, 491384, 614230, 1228460, 2456920]

約数ペア:

[(1, 2456920), (2, 1228460), (4, 614230), (5, 491384), (8, 307115), (10, 245692), (20, 122846), (40, 61423), (239, 10280), (257, 9560), (478, 5140), (514, 4780), (956, 2570), (1028, 2390), (1195, 2056), (1285, 1912)]