139045780

素因数分解:

$2^2\times 5^1\times {\mathrm{6952289}}^1$

素因数の和:6952298

約数の個数: 12

約数和(自身を含む): 291996180

約数和(自身を除く): 152950400

約数列:

[1, 2, 4, 5, 10, 20, 6952289, 13904578, 27809156, 34761445, 69522890, 139045780]

約数ペア:

[(1, 139045780), (2, 69522890), (4, 34761445), (5, 27809156), (10, 13904578), (20, 6952289)]