128008816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{615427}}^1$

素因数の和:615448

約数の個数: 20

約数和(自身を含む): 267095752

約数和(自身を除く): 139086936

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 615427, 1230854, 2461708, 4923416, 8000551, 9846832, 16001102, 32002204, 64004408, 128008816]

約数ペア:

[(1, 128008816), (2, 64004408), (4, 32002204), (8, 16001102), (13, 9846832), (16, 8000551), (26, 4923416), (52, 2461708), (104, 1230854), (208, 615427)]