81257036

素因数分解:

$2^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{7237}}^1$

素因数の和:7649

約数の個数: 24

約数和(自身を含む): 162941856

約数和(自身を除く): 81684820

約数列:

[1, 2, 4, 7, 14, 28, 401, 802, 1604, 2807, 5614, 7237, 11228, 14474, 28948, 50659, 101318, 202636, 2902037, 5804074, 11608148, 20314259, 40628518, 81257036]

約数ペア:

[(1, 81257036), (2, 40628518), (4, 20314259), (7, 11608148), (14, 5804074), (28, 2902037), (401, 202636), (802, 101318), (1604, 50659), (2807, 28948), (5614, 14474), (7237, 11228)]