57131620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31391}}^1$

素因数の和:31420

約数の個数: 48

約数和(自身を含む): 147667968

約数和(自身を除く): 90536348

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 31391, 62782, 125564, 156955, 219737, 313910, 408083, 439474, 627820, 816166, 878948, 1098685, 1632332, 2040415, 2197370, 2856581, 4080830, 4394740, 5713162, 8161660, 11426324, 14282905, 28565810, 57131620]

約数ペア:

[(1, 57131620), (2, 28565810), (4, 14282905), (5, 11426324), (7, 8161660), (10, 5713162), (13, 4394740), (14, 4080830), (20, 2856581), (26, 2197370), (28, 2040415), (35, 1632332), (52, 1098685), (65, 878948), (70, 816166), (91, 627820), (130, 439474), (140, 408083), (182, 313910), (260, 219737), (364, 156955), (455, 125564), (910, 62782), (1820, 31391)]