79995890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 165110400

約数和(自身を除く): 85114510

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 139, 190, 233, 247, 278, 466, 494, 695, 1165, 1235, 1390, 1807, 2330, 2470, 2641, 3029, 3614, 4427, 5282, 6058, 8854, 9035, 13205, 15145, 18070, 22135, 26410, 30290, 32387, 34333, 44270, 57551, 64774, 68666, 115102, 161935, 171665, 287755, 323870, 343330, 421031, 575510, 615353, 842062, 1230706, 2105155, 3076765, 4210310, 6153530, 7999589, 15999178, 39997945, 79995890]

約数ペア:

[(1, 79995890), (2, 39997945), (5, 15999178), (10, 7999589), (13, 6153530), (19, 4210310), (26, 3076765), (38, 2105155), (65, 1230706), (95, 842062), (130, 615353), (139, 575510), (190, 421031), (233, 343330), (247, 323870), (278, 287755), (466, 171665), (494, 161935), (695, 115102), (1165, 68666), (1235, 64774), (1390, 57551), (1807, 44270), (2330, 34333), (2470, 32387), (2641, 30290), (3029, 26410), (3614, 22135), (4427, 18070), (5282, 15145), (6058, 13205), (8854, 9035)]