1239825

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 2091136

約数和(自身を除く): 851311

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 271, 305, 813, 915, 1355, 1525, 4065, 4575, 6775, 16531, 20325, 49593, 82655, 247965, 413275, 1239825]

約数ペア:

[(1, 1239825), (3, 413275), (5, 247965), (15, 82655), (25, 49593), (61, 20325), (75, 16531), (183, 6775), (271, 4575), (305, 4065), (813, 1525), (915, 1355)]