20956930

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1009}}^1$

素因数の和:1114

約数の個数: 32

約数和(自身を含む): 39559680

約数和(自身を除く): 18602750

約数列:

[1, 2, 5, 10, 31, 62, 67, 134, 155, 310, 335, 670, 1009, 2018, 2077, 4154, 5045, 10090, 10385, 20770, 31279, 62558, 67603, 135206, 156395, 312790, 338015, 676030, 2095693, 4191386, 10478465, 20956930]

約数ペア:

[(1, 20956930), (2, 10478465), (5, 4191386), (10, 2095693), (31, 676030), (62, 338015), (67, 312790), (134, 156395), (155, 135206), (310, 67603), (335, 62558), (670, 31279), (1009, 20770), (2018, 10385), (2077, 10090), (4154, 5045)]