20505075

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{11887}}^1$

素因数の和:11923

約数の個数: 24

約数和(自身を含む): 35378688

約数和(自身を除く): 14873613

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 11887, 35661, 59435, 178305, 273401, 297175, 820203, 891525, 1367005, 4101015, 6835025, 20505075]

約数ペア:

[(1, 20505075), (3, 6835025), (5, 4101015), (15, 1367005), (23, 891525), (25, 820203), (69, 297175), (75, 273401), (115, 178305), (345, 59435), (575, 35661), (1725, 11887)]