399040525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39607}}^1$

素因数の和:39661

約数の個数: 24

約数和(自身を含む): 550075904

約数和(自身を除く): 151035379

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 10075, 39607, 198035, 514891, 990175, 1227817, 2574455, 6139085, 12872275, 15961621, 30695425, 79808105, 399040525]

約数ペア:

[(1, 399040525), (5, 79808105), (13, 30695425), (25, 15961621), (31, 12872275), (65, 6139085), (155, 2574455), (325, 1227817), (403, 990175), (775, 514891), (2015, 198035), (10075, 39607)]