257820560

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{54623}}^1$

素因数の和:54695

約数の個数: 40

約数和(自身を含む): 609603840

約数和(自身を除く): 351783280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 54623, 109246, 218492, 273115, 436984, 546230, 873968, 1092460, 2184920, 3222757, 4369840, 6445514, 12891028, 16113785, 25782056, 32227570, 51564112, 64455140, 128910280, 257820560]

約数ペア:

[(1, 257820560), (2, 128910280), (4, 64455140), (5, 51564112), (8, 32227570), (10, 25782056), (16, 16113785), (20, 12891028), (40, 6445514), (59, 4369840), (80, 3222757), (118, 2184920), (236, 1092460), (295, 873968), (472, 546230), (590, 436984), (944, 273115), (1180, 218492), (2360, 109246), (4720, 54623)]