77642025

素因数分解:

$3^1\times 5^2\times {\mathrm{521}}^1\times {\mathrm{1987}}^1$

素因数の和:2521

約数の個数: 24

約数和(自身を含む): 128679264

約数和(自身を除く): 51037239

約数列:

[1, 3, 5, 15, 25, 75, 521, 1563, 1987, 2605, 5961, 7815, 9935, 13025, 29805, 39075, 49675, 149025, 1035227, 3105681, 5176135, 15528405, 25880675, 77642025]

約数ペア:

[(1, 77642025), (3, 25880675), (5, 15528405), (15, 5176135), (25, 3105681), (75, 1035227), (521, 149025), (1563, 49675), (1987, 39075), (2605, 29805), (5961, 13025), (7815, 9935)]