19853025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 36319104

約数和(自身を除く): 16466079

約数列:

[1, 3, 5, 15, 17, 23, 25, 51, 69, 75, 85, 115, 255, 345, 391, 425, 575, 677, 1173, 1275, 1725, 1955, 2031, 3385, 5865, 9775, 10155, 11509, 15571, 16925, 29325, 34527, 46713, 50775, 57545, 77855, 172635, 233565, 264707, 287725, 389275, 794121, 863175, 1167825, 1323535, 3970605, 6617675, 19853025]

約数ペア:

[(1, 19853025), (3, 6617675), (5, 3970605), (15, 1323535), (17, 1167825), (23, 863175), (25, 794121), (51, 389275), (69, 287725), (75, 264707), (85, 233565), (115, 172635), (255, 77855), (345, 57545), (391, 50775), (425, 46713), (575, 34527), (677, 29325), (1173, 16925), (1275, 15571), (1725, 11509), (1955, 10155), (2031, 9775), (3385, 5865)]