391489776740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{57709}}^1\times {\mathrm{8273}}^1$

素因数の和:66032

約数の個数: 48

約数和(自身を含む): 842296840560

約数和(自身を除く): 450807063820

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 8273, 16546, 33092, 41365, 57709, 82730, 115418, 165460, 230836, 288545, 339193, 577090, 678386, 1154180, 1356772, 1695965, 2366069, 3391930, 4732138, 6783860, 9464276, 11830345, 23660690, 47321380, 477426557, 954853114, 1909706228, 2387132785, 4774265570, 9548531140, 19574488837, 39148977674, 78297955348, 97872444185, 195744888370, 391489776740]

約数ペア:

[(1, 391489776740), (2, 195744888370), (4, 97872444185), (5, 78297955348), (10, 39148977674), (20, 19574488837), (41, 9548531140), (82, 4774265570), (164, 2387132785), (205, 1909706228), (410, 954853114), (820, 477426557), (8273, 47321380), (16546, 23660690), (33092, 11830345), (41365, 9464276), (57709, 6783860), (82730, 4732138), (115418, 3391930), (165460, 2366069), (230836, 1695965), (288545, 1356772), (339193, 1154180), (577090, 678386)]