258285890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{8647}}^1$

素因数の和:8786

約数の個数: 32

約数和(自身を含む): 485671680

約数和(自身を除く): 227385790

約数列:

[1, 2, 5, 10, 29, 58, 103, 145, 206, 290, 515, 1030, 2987, 5974, 8647, 14935, 17294, 29870, 43235, 86470, 250763, 501526, 890641, 1253815, 1781282, 2507630, 4453205, 8906410, 25828589, 51657178, 129142945, 258285890]

約数ペア:

[(1, 258285890), (2, 129142945), (5, 51657178), (10, 25828589), (29, 8906410), (58, 4453205), (103, 2507630), (145, 1781282), (206, 1253815), (290, 890641), (515, 501526), (1030, 250763), (2987, 86470), (5974, 43235), (8647, 29870), (14935, 17294)]