51801620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6427}}^1$

素因数の和:6480

約数の個数: 48

約数和(自身を含む): 120949248

約数和(自身を除く): 69147628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 6427, 8060, 12854, 25708, 32135, 64270, 83551, 128540, 167102, 199237, 334204, 398474, 417755, 796948, 835510, 996185, 1671020, 1992370, 2590081, 3984740, 5180162, 10360324, 12950405, 25900810, 51801620]

約数ペア:

[(1, 51801620), (2, 25900810), (4, 12950405), (5, 10360324), (10, 5180162), (13, 3984740), (20, 2590081), (26, 1992370), (31, 1671020), (52, 996185), (62, 835510), (65, 796948), (124, 417755), (130, 398474), (155, 334204), (260, 199237), (310, 167102), (403, 128540), (620, 83551), (806, 64270), (1612, 32135), (2015, 25708), (4030, 12854), (6427, 8060)]