28607475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 53462352

約数和(自身を除く): 24854877

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 61, 65, 75, 111, 169, 183, 185, 195, 305, 325, 481, 507, 555, 793, 845, 915, 925, 975, 1443, 1525, 2257, 2379, 2405, 2535, 2775, 3965, 4225, 4575, 6253, 6771, 7215, 10309, 11285, 11895, 12025, 12675, 18759, 19825, 29341, 30927, 31265, 33855, 36075, 51545, 56425, 59475, 88023, 93795, 146705, 154635, 156325, 169275, 257725, 381433, 440115, 468975, 733525, 773175, 1144299, 1907165, 2200575, 5721495, 9535825, 28607475]

約数ペア:

[(1, 28607475), (3, 9535825), (5, 5721495), (13, 2200575), (15, 1907165), (25, 1144299), (37, 773175), (39, 733525), (61, 468975), (65, 440115), (75, 381433), (111, 257725), (169, 169275), (183, 156325), (185, 154635), (195, 146705), (305, 93795), (325, 88023), (481, 59475), (507, 56425), (555, 51545), (793, 36075), (845, 33855), (915, 31265), (925, 30927), (975, 29341), (1443, 19825), (1525, 18759), (2257, 12675), (2379, 12025), (2405, 11895), (2535, 11285), (2775, 10309), (3965, 7215), (4225, 6771), (4575, 6253)]