20451859775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{123707}}^1$

素因数の和:124123

約数の個数: 24

約数和(自身を含む): 26921334960

約数和(自身を除く): 6469475185

約数列:

[1, 5, 17, 25, 85, 389, 425, 1945, 6613, 9725, 33065, 123707, 165325, 618535, 2103019, 3092675, 10515095, 48122023, 52575475, 240610115, 818074391, 1203050575, 4090371955, 20451859775]

約数ペア:

[(1, 20451859775), (5, 4090371955), (17, 1203050575), (25, 818074391), (85, 240610115), (389, 52575475), (425, 48122023), (1945, 10515095), (6613, 3092675), (9725, 2103019), (33065, 618535), (123707, 165325)]