78897775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{1021}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 107211888

約数和(自身を除く): 28314113

約数列:

[1, 5, 11, 25, 55, 275, 281, 1021, 1405, 3091, 5105, 7025, 11231, 15455, 25525, 56155, 77275, 280775, 286901, 1434505, 3155911, 7172525, 15779555, 78897775]

約数ペア:

[(1, 78897775), (5, 15779555), (11, 7172525), (25, 3155911), (55, 1434505), (275, 286901), (281, 280775), (1021, 77275), (1405, 56155), (3091, 25525), (5105, 15455), (7025, 11231)]