128785072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{619159}}^1$

素因数の和:619180

約数の個数: 20

約数和(自身を含む): 268715440

約数和(自身を除く): 139930368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 619159, 1238318, 2476636, 4953272, 8049067, 9906544, 16098134, 32196268, 64392536, 128785072]

約数ペア:

[(1, 128785072), (2, 64392536), (4, 32196268), (8, 16098134), (13, 9906544), (16, 8049067), (26, 4953272), (52, 2476636), (104, 1238318), (208, 619159)]