261813136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1258717}}^1$

素因数の和:1258738

約数の個数: 20

約数和(自身を含む): 546283612

約数和(自身を除く): 284470476

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1258717, 2517434, 5034868, 10069736, 16363321, 20139472, 32726642, 65453284, 130906568, 261813136]

約数ペア:

[(1, 261813136), (2, 130906568), (4, 65453284), (8, 32726642), (13, 20139472), (16, 16363321), (26, 10069736), (52, 5034868), (104, 2517434), (208, 1258717)]