81755640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:278

約数の個数: 192

約数和(自身を含む): 283046400

約数和(自身を除く): 201290760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 41, 45, 58, 60, 72, 82, 87, 90, 116, 120, 123, 145, 164, 174, 180, 191, 205, 232, 246, 261, 290, 328, 348, 360, 369, 382, 410, 435, 492, 522, 573, 580, 615, 696, 738, 764, 820, 870, 955, 984, 1044, 1146, 1160, 1189, 1230, 1305, 1476, 1528, 1640, 1719, 1740, 1845, 1910, 2088, 2292, 2378, 2460, 2610, 2865, 2952, 3438, 3480, 3567, 3690, 3820, 4584, 4756, 4920, 5220, 5539, 5730, 5945, 6876, 7134, 7380, 7640, 7831, 8595, 9512, 10440, 10701, 11078, 11460, 11890, 13752, 14268, 14760, 15662, 16617, 17190, 17835, 21402, 22156, 22920, 23493, 23780, 27695, 28536, 31324, 33234, 34380, 35670, 39155, 42804, 44312, 46986, 47560, 49851, 53505, 55390, 62648, 66468, 68760, 70479, 71340, 78310, 83085, 85608, 93972, 99702, 107010, 110780, 117465, 132936, 140958, 142680, 156620, 166170, 187944, 199404, 214020, 221560, 227099, 234930, 249255, 281916, 313240, 332340, 352395, 398808, 428040, 454198, 469860, 498510, 563832, 664680, 681297, 704790, 908396, 939720, 997020, 1135495, 1362594, 1409580, 1816792, 1994040, 2043891, 2270990, 2725188, 2819160, 3406485, 4087782, 4541980, 5450376, 6812970, 8175564, 9083960, 10219455, 13625940, 16351128, 20438910, 27251880, 40877820, 81755640]

約数ペア:

[(1, 81755640), (2, 40877820), (3, 27251880), (4, 20438910), (5, 16351128), (6, 13625940), (8, 10219455), (9, 9083960), (10, 8175564), (12, 6812970), (15, 5450376), (18, 4541980), (20, 4087782), (24, 3406485), (29, 2819160), (30, 2725188), (36, 2270990), (40, 2043891), (41, 1994040), (45, 1816792), (58, 1409580), (60, 1362594), (72, 1135495), (82, 997020), (87, 939720), (90, 908396), (116, 704790), (120, 681297), (123, 664680), (145, 563832), (164, 498510), (174, 469860), (180, 454198), (191, 428040), (205, 398808), (232, 352395), (246, 332340), (261, 313240), (290, 281916), (328, 249255), (348, 234930), (360, 227099), (369, 221560), (382, 214020), (410, 199404), (435, 187944), (492, 166170), (522, 156620), (573, 142680), (580, 140958), (615, 132936), (696, 117465), (738, 110780), (764, 107010), (820, 99702), (870, 93972), (955, 85608), (984, 83085), (1044, 78310), (1146, 71340), (1160, 70479), (1189, 68760), (1230, 66468), (1305, 62648), (1476, 55390), (1528, 53505), (1640, 49851), (1719, 47560), (1740, 46986), (1845, 44312), (1910, 42804), (2088, 39155), (2292, 35670), (2378, 34380), (2460, 33234), (2610, 31324), (2865, 28536), (2952, 27695), (3438, 23780), (3480, 23493), (3567, 22920), (3690, 22156), (3820, 21402), (4584, 17835), (4756, 17190), (4920, 16617), (5220, 15662), (5539, 14760), (5730, 14268), (5945, 13752), (6876, 11890), (7134, 11460), (7380, 11078), (7640, 10701), (7831, 10440), (8595, 9512)]