289487965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^2\times {\mathrm{389}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 378607320

約数和(自身を除く): 89119355

約数列:

[1, 5, 13, 65, 107, 389, 535, 1391, 1945, 5057, 6955, 11449, 25285, 41623, 57245, 148837, 208115, 541099, 744185, 2705495, 4453661, 22268305, 57897593, 289487965]

約数ペア:

[(1, 289487965), (5, 57897593), (13, 22268305), (65, 4453661), (107, 2705495), (389, 744185), (535, 541099), (1391, 208115), (1945, 148837), (5057, 57245), (6955, 41623), (11449, 25285)]