20419080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:555

約数の個数: 128

約数和(自身を含む): 69120000

約数和(自身を除く): 48700920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 124, 132, 155, 165, 186, 220, 248, 264, 310, 330, 341, 372, 440, 465, 499, 620, 660, 682, 744, 930, 998, 1023, 1240, 1320, 1364, 1497, 1705, 1860, 1996, 2046, 2495, 2728, 2994, 3410, 3720, 3992, 4092, 4990, 5115, 5489, 5988, 6820, 7485, 8184, 9980, 10230, 10978, 11976, 13640, 14970, 15469, 16467, 19960, 20460, 21956, 27445, 29940, 30938, 32934, 40920, 43912, 46407, 54890, 59880, 61876, 65868, 77345, 82335, 92814, 109780, 123752, 131736, 154690, 164670, 170159, 185628, 219560, 232035, 309380, 329340, 340318, 371256, 464070, 510477, 618760, 658680, 680636, 850795, 928140, 1020954, 1361272, 1701590, 1856280, 2041908, 2552385, 3403180, 4083816, 5104770, 6806360, 10209540, 20419080]

約数ペア:

[(1, 20419080), (2, 10209540), (3, 6806360), (4, 5104770), (5, 4083816), (6, 3403180), (8, 2552385), (10, 2041908), (11, 1856280), (12, 1701590), (15, 1361272), (20, 1020954), (22, 928140), (24, 850795), (30, 680636), (31, 658680), (33, 618760), (40, 510477), (44, 464070), (55, 371256), (60, 340318), (62, 329340), (66, 309380), (88, 232035), (93, 219560), (110, 185628), (120, 170159), (124, 164670), (132, 154690), (155, 131736), (165, 123752), (186, 109780), (220, 92814), (248, 82335), (264, 77345), (310, 65868), (330, 61876), (341, 59880), (372, 54890), (440, 46407), (465, 43912), (499, 40920), (620, 32934), (660, 30938), (682, 29940), (744, 27445), (930, 21956), (998, 20460), (1023, 19960), (1240, 16467), (1320, 15469), (1364, 14970), (1497, 13640), (1705, 11976), (1860, 10978), (1996, 10230), (2046, 9980), (2495, 8184), (2728, 7485), (2994, 6820), (3410, 5988), (3720, 5489), (3992, 5115), (4092, 4990)]