30820725

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 61136712

約数和(自身を除く): 30315987

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 65, 75, 117, 123, 195, 205, 225, 257, 325, 369, 533, 585, 615, 771, 975, 1025, 1285, 1599, 1845, 2313, 2665, 2925, 3075, 3341, 3855, 4797, 6425, 7995, 9225, 10023, 10537, 11565, 13325, 16705, 19275, 23985, 30069, 31611, 39975, 50115, 52685, 57825, 83525, 94833, 119925, 136981, 150345, 158055, 250575, 263425, 410943, 474165, 684905, 751725, 790275, 1232829, 2054715, 2370825, 3424525, 6164145, 10273575, 30820725]

約数ペア:

[(1, 30820725), (3, 10273575), (5, 6164145), (9, 3424525), (13, 2370825), (15, 2054715), (25, 1232829), (39, 790275), (41, 751725), (45, 684905), (65, 474165), (75, 410943), (117, 263425), (123, 250575), (195, 158055), (205, 150345), (225, 136981), (257, 119925), (325, 94833), (369, 83525), (533, 57825), (585, 52685), (615, 50115), (771, 39975), (975, 31611), (1025, 30069), (1285, 23985), (1599, 19275), (1845, 16705), (2313, 13325), (2665, 11565), (2925, 10537), (3075, 10023), (3341, 9225), (3855, 7995), (4797, 6425)]