28987725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2287}}^1$

素因数の和:2326

約数の個数: 36

約数和(自身を含む): 51919296

約数和(自身を除く): 22931571

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 507, 845, 975, 2287, 2535, 4225, 6861, 11435, 12675, 29731, 34305, 57175, 89193, 148655, 171525, 386503, 445965, 743275, 1159509, 1932515, 2229825, 5797545, 9662575, 28987725]

約数ペア:

[(1, 28987725), (3, 9662575), (5, 5797545), (13, 2229825), (15, 1932515), (25, 1159509), (39, 743275), (65, 445965), (75, 386503), (169, 171525), (195, 148655), (325, 89193), (507, 57175), (845, 34305), (975, 29731), (2287, 12675), (2535, 11435), (4225, 6861)]