61705880

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3847}}^1$

素因数の和:4259

約数の個数: 32

約数和(自身を含む): 139220640

約数和(自身を除く): 77514760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 3847, 4010, 7694, 8020, 15388, 16040, 19235, 30776, 38470, 76940, 153880, 1542647, 3085294, 6170588, 7713235, 12341176, 15426470, 30852940, 61705880]

約数ペア:

[(1, 61705880), (2, 30852940), (4, 15426470), (5, 12341176), (8, 7713235), (10, 6170588), (20, 3085294), (40, 1542647), (401, 153880), (802, 76940), (1604, 38470), (2005, 30776), (3208, 19235), (3847, 16040), (4010, 15388), (7694, 8020)]