20776250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1511}}^1$

素因数の和:1544

約数の個数: 40

約数和(自身を含む): 42511392

約数和(自身を除く): 21735142

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 625, 1250, 1375, 1511, 2750, 3022, 6875, 7555, 13750, 15110, 16621, 33242, 37775, 75550, 83105, 166210, 188875, 377750, 415525, 831050, 944375, 1888750, 2077625, 4155250, 10388125, 20776250]

約数ペア:

[(1, 20776250), (2, 10388125), (5, 4155250), (10, 2077625), (11, 1888750), (22, 944375), (25, 831050), (50, 415525), (55, 377750), (110, 188875), (125, 166210), (250, 83105), (275, 75550), (550, 37775), (625, 33242), (1250, 16621), (1375, 15110), (1511, 13750), (2750, 7555), (3022, 6875)]