19707820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3089}}^1$

素因数の和:3138

約数の個数: 48

約数和(自身を含む): 46720800

約数和(自身を除く): 27012980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3089, 3190, 6178, 6380, 12356, 15445, 30890, 33979, 61780, 67958, 89581, 135916, 169895, 179162, 339790, 358324, 447905, 679580, 895810, 985391, 1791620, 1970782, 3941564, 4926955, 9853910, 19707820]

約数ペア:

[(1, 19707820), (2, 9853910), (4, 4926955), (5, 3941564), (10, 1970782), (11, 1791620), (20, 985391), (22, 895810), (29, 679580), (44, 447905), (55, 358324), (58, 339790), (110, 179162), (116, 169895), (145, 135916), (220, 89581), (290, 67958), (319, 61780), (580, 33979), (638, 30890), (1276, 15445), (1595, 12356), (3089, 6380), (3190, 6178)]