42498640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31249}}^1$

素因数の和:31279

約数の個数: 40

約数和(自身を含む): 104625000

約数和(自身を除く): 62126360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 31249, 62498, 124996, 156245, 249992, 312490, 499984, 531233, 624980, 1062466, 1249960, 2124932, 2499920, 2656165, 4249864, 5312330, 8499728, 10624660, 21249320, 42498640]

約数ペア:

[(1, 42498640), (2, 21249320), (4, 10624660), (5, 8499728), (8, 5312330), (10, 4249864), (16, 2656165), (17, 2499920), (20, 2124932), (34, 1249960), (40, 1062466), (68, 624980), (80, 531233), (85, 499984), (136, 312490), (170, 249992), (272, 156245), (340, 124996), (680, 62498), (1360, 31249)]