28812080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1129}}^1$

素因数の和:1182

約数の個数: 80

約数和(自身を含む): 75664800

約数和(自身を除く): 46852720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1129, 1160, 1276, 1595, 2258, 2320, 2552, 3190, 4516, 5104, 5645, 6380, 9032, 11290, 12419, 12760, 18064, 22580, 24838, 25520, 32741, 45160, 49676, 62095, 65482, 90320, 99352, 124190, 130964, 163705, 198704, 248380, 261928, 327410, 360151, 496760, 523856, 654820, 720302, 993520, 1309640, 1440604, 1800755, 2619280, 2881208, 3601510, 5762416, 7203020, 14406040, 28812080]

約数ペア:

[(1, 28812080), (2, 14406040), (4, 7203020), (5, 5762416), (8, 3601510), (10, 2881208), (11, 2619280), (16, 1800755), (20, 1440604), (22, 1309640), (29, 993520), (40, 720302), (44, 654820), (55, 523856), (58, 496760), (80, 360151), (88, 327410), (110, 261928), (116, 248380), (145, 198704), (176, 163705), (220, 130964), (232, 124190), (290, 99352), (319, 90320), (440, 65482), (464, 62095), (580, 49676), (638, 45160), (880, 32741), (1129, 25520), (1160, 24838), (1276, 22580), (1595, 18064), (2258, 12760), (2320, 12419), (2552, 11290), (3190, 9032), (4516, 6380), (5104, 5645)]