64037180

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8231}}^1$

素因数の和:8629

約数の個数: 24

約数和(自身を含む): 134840160

約数和(自身を除く): 70802980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 8231, 16462, 32924, 41155, 82310, 164620, 3201859, 6403718, 12807436, 16009295, 32018590, 64037180]

約数ペア:

[(1, 64037180), (2, 32018590), (4, 16009295), (5, 12807436), (10, 6403718), (20, 3201859), (389, 164620), (778, 82310), (1556, 41155), (1945, 32924), (3890, 16462), (7780, 8231)]