28749825

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9829}}^1$

素因数の和:9858

約数の個数: 36

約数和(自身を含む): 55460860

約数和(自身を除く): 26711035

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9829, 29487, 49145, 88461, 127777, 147435, 245725, 383331, 442305, 638885, 737175, 1149993, 1916655, 2211525, 3194425, 5749965, 9583275, 28749825]

約数ペア:

[(1, 28749825), (3, 9583275), (5, 5749965), (9, 3194425), (13, 2211525), (15, 1916655), (25, 1149993), (39, 737175), (45, 638885), (65, 442305), (75, 383331), (117, 245725), (195, 147435), (225, 127777), (325, 88461), (585, 49145), (975, 29487), (2925, 9829)]