81799080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2055

約数の個数: 128

約数和(自身を含む): 276480000

約数和(自身を除く): 194680920

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, 620, 660, 682, 744, 930, 1023, 1240, 1320, 1364, 1705, 1860, 1999, 2046, 2728, 3410, 3720, 3998, 4092, 5115, 5997, 6820, 7996, 8184, 9995, 10230, 11994, 13640, 15992, 19990, 20460, 21989, 23988, 29985, 39980, 40920, 43978, 47976, 59970, 61969, 65967, 79960, 87956, 109945, 119940, 123938, 131934, 175912, 185907, 219890, 239880, 247876, 263868, 309845, 329835, 371814, 439780, 495752, 527736, 619690, 659670, 681659, 743628, 879560, 929535, 1239380, 1319340, 1363318, 1487256, 1859070, 2044977, 2478760, 2638680, 2726636, 3408295, 3718140, 4089954, 5453272, 6816590, 7436280, 8179908, 10224885, 13633180, 16359816, 20449770, 27266360, 40899540, 81799080]

約数ペア:

[(1, 81799080), (2, 40899540), (3, 27266360), (4, 20449770), (5, 16359816), (6, 13633180), (8, 10224885), (10, 8179908), (11, 7436280), (12, 6816590), (15, 5453272), (20, 4089954), (22, 3718140), (24, 3408295), (30, 2726636), (31, 2638680), (33, 2478760), (40, 2044977), (44, 1859070), (55, 1487256), (60, 1363318), (62, 1319340), (66, 1239380), (88, 929535), (93, 879560), (110, 743628), (120, 681659), (124, 659670), (132, 619690), (155, 527736), (165, 495752), (186, 439780), (220, 371814), (248, 329835), (264, 309845), (310, 263868), (330, 247876), (341, 239880), (372, 219890), (440, 185907), (465, 175912), (620, 131934), (660, 123938), (682, 119940), (744, 109945), (930, 87956), (1023, 79960), (1240, 65967), (1320, 61969), (1364, 59970), (1705, 47976), (1860, 43978), (1999, 40920), (2046, 39980), (2728, 29985), (3410, 23988), (3720, 21989), (3998, 20460), (4092, 19990), (5115, 15992), (5997, 13640), (6820, 11994), (7996, 10230), (8184, 9995)]