91640620

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{11779}}^1$

素因数の和:12177

約数の個数: 24

約数和(自身を含む): 192956400

約数和(自身を除く): 101315780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 11779, 23558, 47116, 58895, 117790, 235580, 4582031, 9164062, 18328124, 22910155, 45820310, 91640620]

約数ペア:

[(1, 91640620), (2, 45820310), (4, 22910155), (5, 18328124), (10, 9164062), (20, 4582031), (389, 235580), (778, 117790), (1556, 58895), (1945, 47116), (3890, 23558), (7780, 11779)]