20611250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1499}}^1$

素因数の和:1532

約数の個数: 40

約数和(自身を含む): 42174000

約数和(自身を除く): 21562750

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 625, 1250, 1375, 1499, 2750, 2998, 6875, 7495, 13750, 14990, 16489, 32978, 37475, 74950, 82445, 164890, 187375, 374750, 412225, 824450, 936875, 1873750, 2061125, 4122250, 10305625, 20611250]

約数ペア:

[(1, 20611250), (2, 10305625), (5, 4122250), (10, 2061125), (11, 1873750), (22, 936875), (25, 824450), (50, 412225), (55, 374750), (110, 187375), (125, 164890), (250, 82445), (275, 74950), (550, 37475), (625, 32978), (1250, 16489), (1375, 14990), (1499, 13750), (2750, 7495), (2998, 6875)]