64420408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1979}}^1$

素因数の和:2311

約数の個数: 32

約数和(自身を含む): 130561200

約数和(自身を除く): 66140792

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 313, 626, 1252, 1979, 2504, 3958, 4069, 7916, 8138, 15832, 16276, 25727, 32552, 51454, 102908, 205816, 619427, 1238854, 2477708, 4955416, 8052551, 16105102, 32210204, 64420408]

約数ペア:

[(1, 64420408), (2, 32210204), (4, 16105102), (8, 8052551), (13, 4955416), (26, 2477708), (52, 1238854), (104, 619427), (313, 205816), (626, 102908), (1252, 51454), (1979, 32552), (2504, 25727), (3958, 16276), (4069, 15832), (7916, 8138)]