128410672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{617359}}^1$

素因数の和:617380

約数の個数: 20

約数和(自身を含む): 267934240

約数和(自身を除く): 139523568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 617359, 1234718, 2469436, 4938872, 8025667, 9877744, 16051334, 32102668, 64205336, 128410672]

約数ペア:

[(1, 128410672), (2, 64205336), (4, 32102668), (8, 16051334), (13, 9877744), (16, 8025667), (26, 4938872), (52, 2469436), (104, 1234718), (208, 617359)]