128521505

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{118453}}^1$

素因数の和:118496

約数の個数: 16

約数和(自身を含む): 181945344

約数和(自身を除く): 53423839

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 118453, 592265, 829171, 3672043, 4145855, 18360215, 25704301, 128521505]

約数ペア:

[(1, 128521505), (5, 25704301), (7, 18360215), (31, 4145855), (35, 3672043), (155, 829171), (217, 592265), (1085, 118453)]