25207820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{769}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 58212000

約数和(自身を除く): 33004180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 769, 1490, 1538, 1639, 2980, 3076, 3278, 3845, 6556, 7690, 8195, 8459, 15380, 16390, 16918, 32780, 33836, 42295, 84590, 114581, 169180, 229162, 458324, 572905, 1145810, 1260391, 2291620, 2520782, 5041564, 6301955, 12603910, 25207820]

約数ペア:

[(1, 25207820), (2, 12603910), (4, 6301955), (5, 5041564), (10, 2520782), (11, 2291620), (20, 1260391), (22, 1145810), (44, 572905), (55, 458324), (110, 229162), (149, 169180), (220, 114581), (298, 84590), (596, 42295), (745, 33836), (769, 32780), (1490, 16918), (1538, 16390), (1639, 15380), (2980, 8459), (3076, 8195), (3278, 7690), (3845, 6556)]