64260140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{881}}^1$

素因数の和:1418

約数の個数: 48

約数和(自身を含む): 154695744

約数和(自身を除く): 90435604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 881, 1042, 1762, 2084, 2605, 3524, 3647, 4405, 5210, 6167, 7294, 8810, 10420, 12334, 14588, 17620, 18235, 24668, 30835, 36470, 61670, 72940, 123340, 459001, 918002, 1836004, 2295005, 3213007, 4590010, 6426014, 9180020, 12852028, 16065035, 32130070, 64260140]

約数ペア:

[(1, 64260140), (2, 32130070), (4, 16065035), (5, 12852028), (7, 9180020), (10, 6426014), (14, 4590010), (20, 3213007), (28, 2295005), (35, 1836004), (70, 918002), (140, 459001), (521, 123340), (881, 72940), (1042, 61670), (1762, 36470), (2084, 30835), (2605, 24668), (3524, 18235), (3647, 17620), (4405, 14588), (5210, 12334), (6167, 10420), (7294, 8810)]