128653240

素因数分解:

$2^3\times 5^1\times {\mathrm{3216331}}^1$

素因数の和:3216342

約数の個数: 16

約数和(自身を含む): 289469880

約数和(自身を除く): 160816640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3216331, 6432662, 12865324, 16081655, 25730648, 32163310, 64326620, 128653240]

約数ペア:

[(1, 128653240), (2, 64326620), (4, 32163310), (5, 25730648), (8, 16081655), (10, 12865324), (20, 6432662), (40, 3216331)]