1981421640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{3187}}^1$

素因数の和:3372

約数の個数: 192

約数和(自身を含む): 7072004160

約数和(自身を除く): 5090582520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 157, 165, 180, 198, 220, 264, 314, 330, 360, 396, 440, 471, 495, 628, 660, 785, 792, 942, 990, 1256, 1320, 1413, 1570, 1727, 1884, 1980, 2355, 2826, 3140, 3187, 3454, 3768, 3960, 4710, 5181, 5652, 6280, 6374, 6908, 7065, 8635, 9420, 9561, 10362, 11304, 12748, 13816, 14130, 15543, 15935, 17270, 18840, 19122, 20724, 25496, 25905, 28260, 28683, 31086, 31870, 34540, 35057, 38244, 41448, 47805, 51810, 56520, 57366, 62172, 63740, 69080, 70114, 76488, 77715, 95610, 103620, 105171, 114732, 124344, 127480, 140228, 143415, 155430, 175285, 191220, 207240, 210342, 229464, 280456, 286830, 310860, 315513, 350570, 382440, 420684, 500359, 525855, 573660, 621720, 631026, 701140, 841368, 1000718, 1051710, 1147320, 1262052, 1402280, 1501077, 1577565, 2001436, 2103420, 2501795, 2524104, 3002154, 3155130, 4002872, 4206840, 4503231, 5003590, 5503949, 6004308, 6310260, 7505385, 9006462, 10007180, 11007898, 12008616, 12620520, 15010770, 16511847, 18012924, 20014360, 22015796, 22516155, 27519745, 30021540, 33023694, 36025848, 44031592, 45032310, 49535541, 55039490, 60043080, 66047388, 82559235, 90064620, 99071082, 110078980, 132094776, 165118470, 180129240, 198142164, 220157960, 247677705, 330236940, 396284328, 495355410, 660473880, 990710820, 1981421640]

約数ペア:

[(1, 1981421640), (2, 990710820), (3, 660473880), (4, 495355410), (5, 396284328), (6, 330236940), (8, 247677705), (9, 220157960), (10, 198142164), (11, 180129240), (12, 165118470), (15, 132094776), (18, 110078980), (20, 99071082), (22, 90064620), (24, 82559235), (30, 66047388), (33, 60043080), (36, 55039490), (40, 49535541), (44, 45032310), (45, 44031592), (55, 36025848), (60, 33023694), (66, 30021540), (72, 27519745), (88, 22516155), (90, 22015796), (99, 20014360), (110, 18012924), (120, 16511847), (132, 15010770), (157, 12620520), (165, 12008616), (180, 11007898), (198, 10007180), (220, 9006462), (264, 7505385), (314, 6310260), (330, 6004308), (360, 5503949), (396, 5003590), (440, 4503231), (471, 4206840), (495, 4002872), (628, 3155130), (660, 3002154), (785, 2524104), (792, 2501795), (942, 2103420), (990, 2001436), (1256, 1577565), (1320, 1501077), (1413, 1402280), (1570, 1262052), (1727, 1147320), (1884, 1051710), (1980, 1000718), (2355, 841368), (2826, 701140), (3140, 631026), (3187, 621720), (3454, 573660), (3768, 525855), (3960, 500359), (4710, 420684), (5181, 382440), (5652, 350570), (6280, 315513), (6374, 310860), (6908, 286830), (7065, 280456), (8635, 229464), (9420, 210342), (9561, 207240), (10362, 191220), (11304, 175285), (12748, 155430), (13816, 143415), (14130, 140228), (15543, 127480), (15935, 124344), (17270, 114732), (18840, 105171), (19122, 103620), (20724, 95610), (25496, 77715), (25905, 76488), (28260, 70114), (28683, 69080), (31086, 63740), (31870, 62172), (34540, 57366), (35057, 56520), (38244, 51810), (41448, 47805)]