128575910

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{1721}}^1$

素因数の和:2000

約数の個数: 32

約数和(自身を含む): 240033024

約数和(自身を除く): 111457114

約数列:

[1, 2, 5, 10, 31, 62, 155, 241, 310, 482, 1205, 1721, 2410, 3442, 7471, 8605, 14942, 17210, 37355, 53351, 74710, 106702, 266755, 414761, 533510, 829522, 2073805, 4147610, 12857591, 25715182, 64287955, 128575910]

約数ペア:

[(1, 128575910), (2, 64287955), (5, 25715182), (10, 12857591), (31, 4147610), (62, 2073805), (155, 829522), (241, 533510), (310, 414761), (482, 266755), (1205, 106702), (1721, 74710), (2410, 53351), (3442, 37355), (7471, 17210), (8605, 14942)]