128512904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1235701}}^1$

素因数の和:1235720

約数の個数: 16

約数和(自身を含む): 259497420

約数和(自身を除く): 130984516

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1235701, 2471402, 4942804, 9885608, 16064113, 32128226, 64256452, 128512904]

約数ペア:

[(1, 128512904), (2, 64256452), (4, 32128226), (8, 16064113), (13, 9885608), (26, 4942804), (52, 2471402), (104, 1235701)]