81176140

素因数分解:

$2^2\times 5^1\times {\mathrm{983}}^1\times {\mathrm{4129}}^1$

素因数の和:5121

約数の個数: 24

約数和(自身を含む): 170684640

約数和(自身を除く): 89508500

約数列:

[1, 2, 4, 5, 10, 20, 983, 1966, 3932, 4129, 4915, 8258, 9830, 16516, 19660, 20645, 41290, 82580, 4058807, 8117614, 16235228, 20294035, 40588070, 81176140]

約数ペア:

[(1, 81176140), (2, 40588070), (4, 20294035), (5, 16235228), (10, 8117614), (20, 4058807), (983, 82580), (1966, 41290), (3932, 20645), (4129, 19660), (4915, 16516), (8258, 9830)]