654820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1129}}^1$

素因数の和:1167

約数の個数: 24

約数和(自身を含む): 1423800

約数和(自身を除く): 768980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1129, 2258, 4516, 5645, 11290, 22580, 32741, 65482, 130964, 163705, 327410, 654820]

約数ペア:

[(1, 654820), (2, 327410), (4, 163705), (5, 130964), (10, 65482), (20, 32741), (29, 22580), (58, 11290), (116, 5645), (145, 4516), (290, 2258), (580, 1129)]