4026915

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:241

約数の個数: 40

約数和(自身を含む): 7381968

約数和(自身を除く): 3355053

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 163, 183, 305, 405, 489, 549, 815, 915, 1467, 1647, 2445, 2745, 4401, 4941, 7335, 8235, 9943, 13203, 22005, 24705, 29829, 49715, 66015, 89487, 149145, 268461, 447435, 805383, 1342305, 4026915]

約数ペア:

[(1, 4026915), (3, 1342305), (5, 805383), (9, 447435), (15, 268461), (27, 149145), (45, 89487), (61, 66015), (81, 49715), (135, 29829), (163, 24705), (183, 22005), (305, 13203), (405, 9943), (489, 8235), (549, 7335), (815, 4941), (915, 4401), (1467, 2745), (1647, 2445)]