259706140

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{13291}}^1$

素因数の和:14277

約数の個数: 24

約数和(自身を含む): 545982192

約数和(自身を除く): 286276052

約数列:

[1, 2, 4, 5, 10, 20, 977, 1954, 3908, 4885, 9770, 13291, 19540, 26582, 53164, 66455, 132910, 265820, 12985307, 25970614, 51941228, 64926535, 129853070, 259706140]

約数ペア:

[(1, 259706140), (2, 129853070), (4, 64926535), (5, 51941228), (10, 25970614), (20, 12985307), (977, 265820), (1954, 132910), (3908, 66455), (4885, 53164), (9770, 26582), (13291, 19540)]