20199289220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{842339}}^1$

素因数の和:842468

約数の個数: 48

約数和(自身を含む): 46699329600

約数和(自身を除く): 26500040380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 11990, 23980, 842339, 1684678, 3369356, 4211695, 8423390, 9265729, 16846780, 18531458, 37062916, 46328645, 91814951, 92657290, 183629902, 185314580, 367259804, 459074755, 918149510, 1009964461, 1836299020, 2019928922, 4039857844, 5049822305, 10099644610, 20199289220]

約数ペア:

[(1, 20199289220), (2, 10099644610), (4, 5049822305), (5, 4039857844), (10, 2019928922), (11, 1836299020), (20, 1009964461), (22, 918149510), (44, 459074755), (55, 367259804), (109, 185314580), (110, 183629902), (218, 92657290), (220, 91814951), (436, 46328645), (545, 37062916), (1090, 18531458), (1199, 16846780), (2180, 9265729), (2398, 8423390), (4796, 4211695), (5995, 3369356), (11990, 1684678), (23980, 842339)]