81976580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{585547}}^1$

素因数の和:585563

約数の個数: 24

約数和(自身を含む): 196744128

約数和(自身を除く): 114767548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 585547, 1171094, 2342188, 2927735, 4098829, 5855470, 8197658, 11710940, 16395316, 20494145, 40988290, 81976580]

約数ペア:

[(1, 81976580), (2, 40988290), (4, 20494145), (5, 16395316), (7, 11710940), (10, 8197658), (14, 5855470), (20, 4098829), (28, 2927735), (35, 2342188), (70, 1171094), (140, 585547)]