28831725

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9857}}^1$

素因数の和:9886

約数の個数: 36

約数和(自身を含む): 55618836

約数和(自身を除く): 26787111

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9857, 29571, 49285, 88713, 128141, 147855, 246425, 384423, 443565, 640705, 739275, 1153269, 1922115, 2217825, 3203525, 5766345, 9610575, 28831725]

約数ペア:

[(1, 28831725), (3, 9610575), (5, 5766345), (9, 3203525), (13, 2217825), (15, 1922115), (25, 1153269), (39, 739275), (45, 640705), (65, 443565), (75, 384423), (117, 246425), (195, 147855), (225, 128141), (325, 88713), (585, 49285), (975, 29571), (2925, 9857)]