51521420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{757}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 112317408

約数和(自身を除く): 60795988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 332, 410, 415, 757, 820, 830, 1514, 1660, 3028, 3403, 3785, 6806, 7570, 13612, 15140, 17015, 31037, 34030, 62074, 62831, 68060, 124148, 125662, 155185, 251324, 310370, 314155, 620740, 628310, 1256620, 2576071, 5152142, 10304284, 12880355, 25760710, 51521420]

約数ペア:

[(1, 51521420), (2, 25760710), (4, 12880355), (5, 10304284), (10, 5152142), (20, 2576071), (41, 1256620), (82, 628310), (83, 620740), (164, 314155), (166, 310370), (205, 251324), (332, 155185), (410, 125662), (415, 124148), (757, 68060), (820, 62831), (830, 62074), (1514, 34030), (1660, 31037), (3028, 17015), (3403, 15140), (3785, 13612), (6806, 7570)]