640775648

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{690491}}^1$

素因数の和:690530

約数の個数: 24

約数和(自身を含む): 1305029880

約数和(自身を除く): 664254232

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 928, 690491, 1380982, 2761964, 5523928, 11047856, 20024239, 22095712, 40048478, 80096956, 160193912, 320387824, 640775648]

約数ペア:

[(1, 640775648), (2, 320387824), (4, 160193912), (8, 80096956), (16, 40048478), (29, 22095712), (32, 20024239), (58, 11047856), (116, 5523928), (232, 2761964), (464, 1380982), (928, 690491)]