61942780

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{19727}}^1$

素因数の和:19893

約数の個数: 24

約数和(自身を含む): 130915008

約数和(自身を除く): 68972228

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 19727, 39454, 78908, 98635, 197270, 394540, 3097139, 6194278, 12388556, 15485695, 30971390, 61942780]

約数ペア:

[(1, 61942780), (2, 30971390), (4, 15485695), (5, 12388556), (10, 6194278), (20, 3097139), (157, 394540), (314, 197270), (628, 98635), (785, 78908), (1570, 39454), (3140, 19727)]