20912570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1669}}^1$

素因数の和:1862

約数の個数: 32

約数和(自身を含む): 43286400

約数和(自身を除く): 22373830

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 179, 358, 895, 1253, 1669, 1790, 2506, 3338, 6265, 8345, 11683, 12530, 16690, 23366, 58415, 116830, 298751, 597502, 1493755, 2091257, 2987510, 4182514, 10456285, 20912570]

約数ペア:

[(1, 20912570), (2, 10456285), (5, 4182514), (7, 2987510), (10, 2091257), (14, 1493755), (35, 597502), (70, 298751), (179, 116830), (358, 58415), (895, 23366), (1253, 16690), (1669, 12530), (1790, 11683), (2506, 8345), (3338, 6265)]