20169825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 36414336

約数和(自身を除く): 16244511

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 137, 151, 195, 325, 411, 453, 685, 755, 975, 1781, 1963, 2055, 2265, 3425, 3775, 5343, 5889, 8905, 9815, 10275, 11325, 20687, 26715, 29445, 44525, 49075, 62061, 103435, 133575, 147225, 268931, 310305, 517175, 806793, 1344655, 1551525, 4033965, 6723275, 20169825]

約数ペア:

[(1, 20169825), (3, 6723275), (5, 4033965), (13, 1551525), (15, 1344655), (25, 806793), (39, 517175), (65, 310305), (75, 268931), (137, 147225), (151, 133575), (195, 103435), (325, 62061), (411, 49075), (453, 44525), (685, 29445), (755, 26715), (975, 20687), (1781, 11325), (1963, 10275), (2055, 9815), (2265, 8905), (3425, 5889), (3775, 5343)]