127980112

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{615289}}^1$

素因数の和:615310

約数の個数: 20

約数和(自身を含む): 267035860

約数和(自身を除く): 139055748

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 615289, 1230578, 2461156, 4922312, 7998757, 9844624, 15997514, 31995028, 63990056, 127980112]

約数ペア:

[(1, 127980112), (2, 63990056), (4, 31995028), (8, 15997514), (13, 9844624), (16, 7998757), (26, 4922312), (52, 2461156), (104, 1230578), (208, 615289)]