180640240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{881}}^1$

素因数の和:1138

約数の個数: 80

約数和(自身を含む): 460658016

約数和(自身を除く): 280017776

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 233, 440, 466, 880, 881, 932, 1165, 1762, 1864, 2330, 2563, 3524, 3728, 4405, 4660, 5126, 7048, 8810, 9320, 9691, 10252, 12815, 14096, 17620, 18640, 19382, 20504, 25630, 35240, 38764, 41008, 48455, 51260, 70480, 77528, 96910, 102520, 155056, 193820, 205040, 205273, 387640, 410546, 775280, 821092, 1026365, 1642184, 2052730, 2258003, 3284368, 4105460, 4516006, 8210920, 9032012, 11290015, 16421840, 18064024, 22580030, 36128048, 45160060, 90320120, 180640240]

約数ペア:

[(1, 180640240), (2, 90320120), (4, 45160060), (5, 36128048), (8, 22580030), (10, 18064024), (11, 16421840), (16, 11290015), (20, 9032012), (22, 8210920), (40, 4516006), (44, 4105460), (55, 3284368), (80, 2258003), (88, 2052730), (110, 1642184), (176, 1026365), (220, 821092), (233, 775280), (440, 410546), (466, 387640), (880, 205273), (881, 205040), (932, 193820), (1165, 155056), (1762, 102520), (1864, 96910), (2330, 77528), (2563, 70480), (3524, 51260), (3728, 48455), (4405, 41008), (4660, 38764), (5126, 35240), (7048, 25630), (8810, 20504), (9320, 19382), (9691, 18640), (10252, 17620), (12815, 14096)]