15581205

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 28304640

約数和(自身を除く): 12723435

約数列:

[1, 3, 5, 9, 15, 45, 47, 53, 139, 141, 159, 235, 265, 417, 423, 477, 695, 705, 795, 1251, 2085, 2115, 2385, 2491, 6255, 6533, 7367, 7473, 12455, 19599, 22101, 22419, 32665, 36835, 37365, 58797, 66303, 97995, 110505, 112095, 293985, 331515, 346249, 1038747, 1731245, 3116241, 5193735, 15581205]

約数ペア:

[(1, 15581205), (3, 5193735), (5, 3116241), (9, 1731245), (15, 1038747), (45, 346249), (47, 331515), (53, 293985), (139, 112095), (141, 110505), (159, 97995), (235, 66303), (265, 58797), (417, 37365), (423, 36835), (477, 32665), (695, 22419), (705, 22101), (795, 19599), (1251, 12455), (2085, 7473), (2115, 7367), (2385, 6533), (2491, 6255)]