18279425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1327}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 24700800

約数和(自身を除く): 6421375

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1327, 2755, 6635, 13775, 25213, 33175, 38483, 126065, 192415, 630325, 731177, 962075, 3655885, 18279425]

約数ペア:

[(1, 18279425), (5, 3655885), (19, 962075), (25, 731177), (29, 630325), (95, 192415), (145, 126065), (475, 38483), (551, 33175), (725, 25213), (1327, 13775), (2755, 6635)]