208887580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{1129}}^1$

素因数の和:1207

約数の個数: 72

約数和(自身を含む): 496051920

約数和(自身を除く): 287164340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 841, 1129, 1276, 1595, 1682, 2258, 3190, 3364, 4205, 4516, 5645, 6380, 8410, 9251, 11290, 12419, 16820, 18502, 22580, 24838, 32741, 37004, 46255, 49676, 62095, 65482, 92510, 124190, 130964, 163705, 185020, 248380, 327410, 360151, 654820, 720302, 949489, 1440604, 1800755, 1898978, 3601510, 3797956, 4747445, 7203020, 9494890, 10444379, 18989780, 20888758, 41777516, 52221895, 104443790, 208887580]

約数ペア:

[(1, 208887580), (2, 104443790), (4, 52221895), (5, 41777516), (10, 20888758), (11, 18989780), (20, 10444379), (22, 9494890), (29, 7203020), (44, 4747445), (55, 3797956), (58, 3601510), (110, 1898978), (116, 1800755), (145, 1440604), (220, 949489), (290, 720302), (319, 654820), (580, 360151), (638, 327410), (841, 248380), (1129, 185020), (1276, 163705), (1595, 130964), (1682, 124190), (2258, 92510), (3190, 65482), (3364, 62095), (4205, 49676), (4516, 46255), (5645, 37004), (6380, 32741), (8410, 24838), (9251, 22580), (11290, 18502), (12419, 16820)]