28561975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3821}}^1$

素因数の和:3867

約数の個数: 24

約数和(自身を含む): 39809952

約数和(自身を除く): 11247977

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 3821, 7475, 19105, 49673, 87883, 95525, 248365, 439415, 1142479, 1241825, 2197075, 5712395, 28561975]

約数ペア:

[(1, 28561975), (5, 5712395), (13, 2197075), (23, 1241825), (25, 1142479), (65, 439415), (115, 248365), (299, 95525), (325, 87883), (575, 49673), (1495, 19105), (3821, 7475)]