81989820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:182

約数の個数: 240

約数和(自身を含む): 289795968

約数和(自身を除く): 207806148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 43, 44, 45, 54, 55, 60, 66, 81, 86, 90, 99, 107, 108, 110, 129, 132, 135, 162, 165, 172, 180, 198, 214, 215, 220, 258, 270, 297, 321, 324, 330, 387, 396, 405, 428, 430, 473, 495, 516, 535, 540, 594, 642, 645, 660, 774, 810, 860, 891, 946, 963, 990, 1070, 1161, 1177, 1188, 1284, 1290, 1419, 1485, 1548, 1605, 1620, 1782, 1892, 1926, 1935, 1980, 2140, 2322, 2354, 2365, 2580, 2838, 2889, 2970, 3210, 3483, 3531, 3564, 3852, 3870, 4257, 4455, 4601, 4644, 4708, 4730, 4815, 5676, 5778, 5805, 5885, 5940, 6420, 6966, 7062, 7095, 7740, 8514, 8667, 8910, 9202, 9460, 9630, 10593, 11556, 11610, 11770, 12771, 13803, 13932, 14124, 14190, 14445, 17028, 17334, 17415, 17655, 17820, 18404, 19260, 21186, 21285, 23005, 23220, 23540, 25542, 27606, 28380, 28890, 31779, 34668, 34830, 35310, 38313, 41409, 42372, 42570, 43335, 46010, 50611, 51084, 52965, 55212, 57780, 63558, 63855, 69015, 69660, 70620, 76626, 82818, 85140, 86670, 92020, 95337, 101222, 105930, 124227, 127116, 127710, 138030, 151833, 153252, 158895, 165636, 173340, 190674, 191565, 202444, 207045, 211860, 248454, 253055, 255420, 276060, 303666, 317790, 372681, 381348, 383130, 414090, 455499, 476685, 496908, 506110, 607332, 621135, 635580, 745362, 759165, 766260, 828180, 910998, 953370, 1012220, 1242270, 1366497, 1490724, 1518330, 1821996, 1863405, 1906740, 2277495, 2484540, 2732994, 3036660, 3726810, 4099491, 4554990, 5465988, 6832485, 7453620, 8198982, 9109980, 13664970, 16397964, 20497455, 27329940, 40994910, 81989820]

約数ペア:

[(1, 81989820), (2, 40994910), (3, 27329940), (4, 20497455), (5, 16397964), (6, 13664970), (9, 9109980), (10, 8198982), (11, 7453620), (12, 6832485), (15, 5465988), (18, 4554990), (20, 4099491), (22, 3726810), (27, 3036660), (30, 2732994), (33, 2484540), (36, 2277495), (43, 1906740), (44, 1863405), (45, 1821996), (54, 1518330), (55, 1490724), (60, 1366497), (66, 1242270), (81, 1012220), (86, 953370), (90, 910998), (99, 828180), (107, 766260), (108, 759165), (110, 745362), (129, 635580), (132, 621135), (135, 607332), (162, 506110), (165, 496908), (172, 476685), (180, 455499), (198, 414090), (214, 383130), (215, 381348), (220, 372681), (258, 317790), (270, 303666), (297, 276060), (321, 255420), (324, 253055), (330, 248454), (387, 211860), (396, 207045), (405, 202444), (428, 191565), (430, 190674), (473, 173340), (495, 165636), (516, 158895), (535, 153252), (540, 151833), (594, 138030), (642, 127710), (645, 127116), (660, 124227), (774, 105930), (810, 101222), (860, 95337), (891, 92020), (946, 86670), (963, 85140), (990, 82818), (1070, 76626), (1161, 70620), (1177, 69660), (1188, 69015), (1284, 63855), (1290, 63558), (1419, 57780), (1485, 55212), (1548, 52965), (1605, 51084), (1620, 50611), (1782, 46010), (1892, 43335), (1926, 42570), (1935, 42372), (1980, 41409), (2140, 38313), (2322, 35310), (2354, 34830), (2365, 34668), (2580, 31779), (2838, 28890), (2889, 28380), (2970, 27606), (3210, 25542), (3483, 23540), (3531, 23220), (3564, 23005), (3852, 21285), (3870, 21186), (4257, 19260), (4455, 18404), (4601, 17820), (4644, 17655), (4708, 17415), (4730, 17334), (4815, 17028), (5676, 14445), (5778, 14190), (5805, 14124), (5885, 13932), (5940, 13803), (6420, 12771), (6966, 11770), (7062, 11610), (7095, 11556), (7740, 10593), (8514, 9630), (8667, 9460), (8910, 9202)]