28405516

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{359}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 50561280

約数和(自身を除く): 22155764

約数列:

[1, 2, 4, 131, 151, 262, 302, 359, 524, 604, 718, 1436, 19781, 39562, 47029, 54209, 79124, 94058, 108418, 188116, 216836, 7101379, 14202758, 28405516]

約数ペア:

[(1, 28405516), (2, 14202758), (4, 7101379), (131, 216836), (151, 188116), (262, 108418), (302, 94058), (359, 79124), (524, 54209), (604, 47029), (718, 39562), (1436, 19781)]