20512157900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15778583}}^1$

素因数の和:15778610

約数の個数: 36

約数和(自身を含む): 47935338192

約数和(自身を除く): 27423180292

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15778583, 31557166, 63114332, 78892915, 157785830, 205121579, 315571660, 394464575, 410243158, 788929150, 820486316, 1025607895, 1577858300, 2051215790, 4102431580, 5128039475, 10256078950, 20512157900]

約数ペア:

[(1, 20512157900), (2, 10256078950), (4, 5128039475), (5, 4102431580), (10, 2051215790), (13, 1577858300), (20, 1025607895), (25, 820486316), (26, 788929150), (50, 410243158), (52, 394464575), (65, 315571660), (100, 205121579), (130, 157785830), (260, 78892915), (325, 63114332), (650, 31557166), (1300, 15778583)]