15920775

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5443}}^1$

素因数の和:5472

約数の個数: 36

約数和(自身を含む): 30715048

約数和(自身を除く): 14794273

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 5443, 16329, 27215, 48987, 70759, 81645, 136075, 212277, 244935, 353795, 408225, 636831, 1061385, 1224675, 1768975, 3184155, 5306925, 15920775]

約数ペア:

[(1, 15920775), (3, 5306925), (5, 3184155), (9, 1768975), (13, 1224675), (15, 1061385), (25, 636831), (39, 408225), (45, 353795), (65, 244935), (75, 212277), (117, 136075), (195, 81645), (225, 70759), (325, 48987), (585, 27215), (975, 16329), (2925, 5443)]