12643960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6451}}^1$

素因数の和:6476

約数の個数: 48

約数和(自身を含む): 33098760

約数和(自身を除く): 20454800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6451, 12902, 25804, 32255, 45157, 51608, 64510, 90314, 129020, 180628, 225785, 258040, 316099, 361256, 451570, 632198, 903140, 1264396, 1580495, 1806280, 2528792, 3160990, 6321980, 12643960]

約数ペア:

[(1, 12643960), (2, 6321980), (4, 3160990), (5, 2528792), (7, 1806280), (8, 1580495), (10, 1264396), (14, 903140), (20, 632198), (28, 451570), (35, 361256), (40, 316099), (49, 258040), (56, 225785), (70, 180628), (98, 129020), (140, 90314), (196, 64510), (245, 51608), (280, 45157), (392, 32255), (490, 25804), (980, 12902), (1960, 6451)]