64128825

素因数分解:

$3^2\times 5^2\times {\mathrm{421}}^1\times {\mathrm{677}}^1$

素因数の和:1114

約数の個数: 36

約数和(自身を含む): 115304748

約数和(自身を除く): 51175923

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 421, 677, 1263, 2031, 2105, 3385, 3789, 6093, 6315, 10155, 10525, 16925, 18945, 30465, 31575, 50775, 94725, 152325, 285017, 855051, 1425085, 2565153, 4275255, 7125425, 12825765, 21376275, 64128825]

約数ペア:

[(1, 64128825), (3, 21376275), (5, 12825765), (9, 7125425), (15, 4275255), (25, 2565153), (45, 1425085), (75, 855051), (225, 285017), (421, 152325), (677, 94725), (1263, 50775), (2031, 31575), (2105, 30465), (3385, 18945), (3789, 16925), (6093, 10525), (6315, 10155)]