209933900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6581}}^1$

素因数の和:6635

約数の個数: 72

約数和(自身を含む): 514185840

約数和(自身を除く): 304251940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 100, 110, 116, 145, 220, 275, 290, 319, 550, 580, 638, 725, 1100, 1276, 1450, 1595, 2900, 3190, 6380, 6581, 7975, 13162, 15950, 26324, 31900, 32905, 65810, 72391, 131620, 144782, 164525, 190849, 289564, 329050, 361955, 381698, 658100, 723910, 763396, 954245, 1447820, 1809775, 1908490, 2099339, 3619550, 3816980, 4198678, 4771225, 7239100, 8397356, 9542450, 10496695, 19084900, 20993390, 41986780, 52483475, 104966950, 209933900]

約数ペア:

[(1, 209933900), (2, 104966950), (4, 52483475), (5, 41986780), (10, 20993390), (11, 19084900), (20, 10496695), (22, 9542450), (25, 8397356), (29, 7239100), (44, 4771225), (50, 4198678), (55, 3816980), (58, 3619550), (100, 2099339), (110, 1908490), (116, 1809775), (145, 1447820), (220, 954245), (275, 763396), (290, 723910), (319, 658100), (550, 381698), (580, 361955), (638, 329050), (725, 289564), (1100, 190849), (1276, 164525), (1450, 144782), (1595, 131620), (2900, 72391), (3190, 65810), (6380, 32905), (6581, 31900), (7975, 26324), (13162, 15950)]