20214790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1069}}^1$

素因数の和:1168

約数の個数: 32

約数和(自身を含む): 38211840

約数和(自身を除く): 17997050

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 155, 305, 310, 610, 1069, 1891, 2138, 3782, 5345, 9455, 10690, 18910, 33139, 65209, 66278, 130418, 165695, 326045, 331390, 652090, 2021479, 4042958, 10107395, 20214790]

約数ペア:

[(1, 20214790), (2, 10107395), (5, 4042958), (10, 2021479), (31, 652090), (61, 331390), (62, 326045), (122, 165695), (155, 130418), (305, 66278), (310, 65209), (610, 33139), (1069, 18910), (1891, 10690), (2138, 9455), (3782, 5345)]