66394120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127681}}^1$

素因数の和:127705

約数の個数: 32

約数和(自身を含む): 160879320

約数和(自身を除く): 94485200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 127681, 255362, 510724, 638405, 1021448, 1276810, 1659853, 2553620, 3319706, 5107240, 6639412, 8299265, 13278824, 16598530, 33197060, 66394120]

約数ペア:

[(1, 66394120), (2, 33197060), (4, 16598530), (5, 13278824), (8, 8299265), (10, 6639412), (13, 5107240), (20, 3319706), (26, 2553620), (40, 1659853), (52, 1276810), (65, 1021448), (104, 638405), (130, 510724), (260, 255362), (520, 127681)]