20780100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2099}}^1$

素因数の和:2130

約数の個数: 108

約数和(自身を含む): 71089200

約数和(自身を除く): 50309100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 30, 33, 36, 44, 45, 50, 55, 60, 66, 75, 90, 99, 100, 110, 132, 150, 165, 180, 198, 220, 225, 275, 300, 330, 396, 450, 495, 550, 660, 825, 900, 990, 1100, 1650, 1980, 2099, 2475, 3300, 4198, 4950, 6297, 8396, 9900, 10495, 12594, 18891, 20990, 23089, 25188, 31485, 37782, 41980, 46178, 52475, 62970, 69267, 75564, 92356, 94455, 104950, 115445, 125940, 138534, 157425, 188910, 207801, 209900, 230890, 277068, 314850, 346335, 377820, 415602, 461780, 472275, 577225, 629700, 692670, 831204, 944550, 1039005, 1154450, 1385340, 1731675, 1889100, 2078010, 2308900, 3463350, 4156020, 5195025, 6926700, 10390050, 20780100]

約数ペア:

[(1, 20780100), (2, 10390050), (3, 6926700), (4, 5195025), (5, 4156020), (6, 3463350), (9, 2308900), (10, 2078010), (11, 1889100), (12, 1731675), (15, 1385340), (18, 1154450), (20, 1039005), (22, 944550), (25, 831204), (30, 692670), (33, 629700), (36, 577225), (44, 472275), (45, 461780), (50, 415602), (55, 377820), (60, 346335), (66, 314850), (75, 277068), (90, 230890), (99, 209900), (100, 207801), (110, 188910), (132, 157425), (150, 138534), (165, 125940), (180, 115445), (198, 104950), (220, 94455), (225, 92356), (275, 75564), (300, 69267), (330, 62970), (396, 52475), (450, 46178), (495, 41980), (550, 37782), (660, 31485), (825, 25188), (900, 23089), (990, 20990), (1100, 18891), (1650, 12594), (1980, 10495), (2099, 9900), (2475, 8396), (3300, 6297), (4198, 4950)]