20635820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{757}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 45843840

約数和(自身を除く): 25208020

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 116, 145, 188, 235, 290, 470, 580, 757, 940, 1363, 1514, 2726, 3028, 3785, 5452, 6815, 7570, 13630, 15140, 21953, 27260, 35579, 43906, 71158, 87812, 109765, 142316, 177895, 219530, 355790, 439060, 711580, 1031791, 2063582, 4127164, 5158955, 10317910, 20635820]

約数ペア:

[(1, 20635820), (2, 10317910), (4, 5158955), (5, 4127164), (10, 2063582), (20, 1031791), (29, 711580), (47, 439060), (58, 355790), (94, 219530), (116, 177895), (145, 142316), (188, 109765), (235, 87812), (290, 71158), (470, 43906), (580, 35579), (757, 27260), (940, 21953), (1363, 15140), (1514, 13630), (2726, 7570), (3028, 6815), (3785, 5452)]