71809820

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{15679}}^1$

素因数の和:15917

約数の個数: 24

約数和(自身を含む): 151468800

約数和(自身を除く): 79658980

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 15679, 31358, 62716, 78395, 156790, 313580, 3590491, 7180982, 14361964, 17952455, 35904910, 71809820]

約数ペア:

[(1, 71809820), (2, 35904910), (4, 17952455), (5, 14361964), (10, 7180982), (20, 3590491), (229, 313580), (458, 156790), (916, 78395), (1145, 62716), (2290, 31358), (4580, 15679)]