19990750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6151}}^1$

素因数の和:6181

約数の個数: 32

約数和(自身を含む): 40307904

約数和(自身を除く): 20317154

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 6151, 12302, 30755, 61510, 79963, 153775, 159926, 307550, 399815, 768875, 799630, 1537750, 1999075, 3998150, 9995375, 19990750]

約数ペア:

[(1, 19990750), (2, 9995375), (5, 3998150), (10, 1999075), (13, 1537750), (25, 799630), (26, 768875), (50, 399815), (65, 307550), (125, 159926), (130, 153775), (250, 79963), (325, 61510), (650, 30755), (1625, 12302), (3250, 6151)]