128390742

素因数分解:

$2^1\times 3^2\times {\mathrm{131}}^1\times {\mathrm{54449}}^1$

素因数の和:54588

約数の個数: 24

約数和(自身を含む): 280308600

約数和(自身を除く): 151917858

約数列:

[1, 2, 3, 6, 9, 18, 131, 262, 393, 786, 1179, 2358, 54449, 108898, 163347, 326694, 490041, 980082, 7132819, 14265638, 21398457, 42796914, 64195371, 128390742]

約数ペア:

[(1, 128390742), (2, 64195371), (3, 42796914), (6, 21398457), (9, 14265638), (18, 7132819), (131, 980082), (262, 490041), (393, 326694), (786, 163347), (1179, 108898), (2358, 54449)]