20045360

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{757}}^1$

素因数の和:1101

約数の個数: 40

約数和(自身を含む): 46808016

約数和(自身を除く): 26762656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 757, 1324, 1514, 1655, 2648, 3028, 3310, 3785, 5296, 6056, 6620, 7570, 12112, 13240, 15140, 26480, 30280, 60560, 250567, 501134, 1002268, 1252835, 2004536, 2505670, 4009072, 5011340, 10022680, 20045360]

約数ペア:

[(1, 20045360), (2, 10022680), (4, 5011340), (5, 4009072), (8, 2505670), (10, 2004536), (16, 1252835), (20, 1002268), (40, 501134), (80, 250567), (331, 60560), (662, 30280), (757, 26480), (1324, 15140), (1514, 13240), (1655, 12112), (2648, 7570), (3028, 6620), (3310, 6056), (3785, 5296)]