28217020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2647}}^1$

素因数の和:2710

約数の個数: 48

約数和(自身を含む): 65395008

約数和(自身を除く): 37177988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2647, 2665, 5294, 5330, 10588, 10660, 13235, 26470, 34411, 52940, 68822, 108527, 137644, 172055, 217054, 344110, 434108, 542635, 688220, 1085270, 1410851, 2170540, 2821702, 5643404, 7054255, 14108510, 28217020]

約数ペア:

[(1, 28217020), (2, 14108510), (4, 7054255), (5, 5643404), (10, 2821702), (13, 2170540), (20, 1410851), (26, 1085270), (41, 688220), (52, 542635), (65, 434108), (82, 344110), (130, 217054), (164, 172055), (205, 137644), (260, 108527), (410, 68822), (533, 52940), (820, 34411), (1066, 26470), (2132, 13235), (2647, 10660), (2665, 10588), (5294, 5330)]