208815505

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 285053184

約数和(自身を除く): 76237679

約数列:

[1, 5, 17, 23, 61, 85, 103, 115, 289, 305, 391, 515, 1037, 1403, 1445, 1751, 1955, 2369, 5185, 6283, 6647, 7015, 8755, 11845, 17629, 23851, 29767, 31415, 33235, 40273, 88145, 106811, 119255, 144509, 148835, 201365, 405467, 534055, 684641, 722545, 1815787, 2027335, 2456653, 3423205, 9078935, 12283265, 41763101, 208815505]

約数ペア:

[(1, 208815505), (5, 41763101), (17, 12283265), (23, 9078935), (61, 3423205), (85, 2456653), (103, 2027335), (115, 1815787), (289, 722545), (305, 684641), (391, 534055), (515, 405467), (1037, 201365), (1403, 148835), (1445, 144509), (1751, 119255), (1955, 106811), (2369, 88145), (5185, 40273), (6283, 33235), (6647, 31415), (7015, 29767), (8755, 23851), (11845, 17629)]