20572750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7481}}^1$

素因数の和:7509

約数の個数: 32

約数和(自身を含む): 42018912

約数和(自身を除く): 21446162

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7481, 14962, 37405, 74810, 82291, 164582, 187025, 374050, 411455, 822910, 935125, 1870250, 2057275, 4114550, 10286375, 20572750]

約数ペア:

[(1, 20572750), (2, 10286375), (5, 4114550), (10, 2057275), (11, 1870250), (22, 935125), (25, 822910), (50, 411455), (55, 374050), (110, 187025), (125, 164582), (250, 82291), (275, 74810), (550, 37405), (1375, 14962), (2750, 7481)]