18765125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:206

約数の個数: 32

約数和(自身を含む): 25069824

約数和(自身を除く): 6304699

約数列:

[1, 5, 23, 25, 61, 107, 115, 125, 305, 535, 575, 1403, 1525, 2461, 2675, 2875, 6527, 7015, 7625, 12305, 13375, 32635, 35075, 61525, 150121, 163175, 175375, 307625, 750605, 815875, 3753025, 18765125]

約数ペア:

[(1, 18765125), (5, 3753025), (23, 815875), (25, 750605), (61, 307625), (107, 175375), (115, 163175), (125, 150121), (305, 61525), (535, 35075), (575, 32635), (1403, 13375), (1525, 12305), (2461, 7625), (2675, 7015), (2875, 6527)]