81558840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:214

約数の個数: 192

約数和(自身を含む): 277512480

約数和(自身を除く): 195953640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 41, 44, 55, 60, 66, 82, 88, 110, 120, 121, 123, 132, 137, 164, 165, 205, 220, 242, 246, 264, 274, 328, 330, 363, 410, 411, 440, 451, 484, 492, 548, 605, 615, 660, 685, 726, 820, 822, 902, 968, 984, 1096, 1210, 1230, 1320, 1353, 1370, 1452, 1507, 1640, 1644, 1804, 1815, 2055, 2255, 2420, 2460, 2706, 2740, 2904, 3014, 3288, 3608, 3630, 4110, 4510, 4521, 4840, 4920, 4961, 5412, 5480, 5617, 6028, 6765, 7260, 7535, 8220, 9020, 9042, 9922, 10824, 11234, 12056, 13530, 14520, 14883, 15070, 16440, 16577, 16851, 18040, 18084, 19844, 22468, 22605, 24805, 27060, 28085, 29766, 30140, 33154, 33702, 36168, 39688, 44936, 45210, 49610, 49731, 54120, 56170, 59532, 60280, 61787, 66308, 67404, 74415, 82885, 84255, 90420, 99220, 99462, 112340, 119064, 123574, 132616, 134808, 148830, 165770, 168510, 180840, 185361, 198440, 198924, 224680, 247148, 248655, 297660, 308935, 331540, 337020, 370722, 397848, 494296, 497310, 595320, 617870, 663080, 674040, 679657, 741444, 926805, 994620, 1235740, 1359314, 1482888, 1853610, 1989240, 2038971, 2471480, 2718628, 3398285, 3707220, 4077942, 5437256, 6796570, 7414440, 8155884, 10194855, 13593140, 16311768, 20389710, 27186280, 40779420, 81558840]

約数ペア:

[(1, 81558840), (2, 40779420), (3, 27186280), (4, 20389710), (5, 16311768), (6, 13593140), (8, 10194855), (10, 8155884), (11, 7414440), (12, 6796570), (15, 5437256), (20, 4077942), (22, 3707220), (24, 3398285), (30, 2718628), (33, 2471480), (40, 2038971), (41, 1989240), (44, 1853610), (55, 1482888), (60, 1359314), (66, 1235740), (82, 994620), (88, 926805), (110, 741444), (120, 679657), (121, 674040), (123, 663080), (132, 617870), (137, 595320), (164, 497310), (165, 494296), (205, 397848), (220, 370722), (242, 337020), (246, 331540), (264, 308935), (274, 297660), (328, 248655), (330, 247148), (363, 224680), (410, 198924), (411, 198440), (440, 185361), (451, 180840), (484, 168510), (492, 165770), (548, 148830), (605, 134808), (615, 132616), (660, 123574), (685, 119064), (726, 112340), (820, 99462), (822, 99220), (902, 90420), (968, 84255), (984, 82885), (1096, 74415), (1210, 67404), (1230, 66308), (1320, 61787), (1353, 60280), (1370, 59532), (1452, 56170), (1507, 54120), (1640, 49731), (1644, 49610), (1804, 45210), (1815, 44936), (2055, 39688), (2255, 36168), (2420, 33702), (2460, 33154), (2706, 30140), (2740, 29766), (2904, 28085), (3014, 27060), (3288, 24805), (3608, 22605), (3630, 22468), (4110, 19844), (4510, 18084), (4521, 18040), (4840, 16851), (4920, 16577), (4961, 16440), (5412, 15070), (5480, 14883), (5617, 14520), (6028, 13530), (6765, 12056), (7260, 11234), (7535, 10824), (8220, 9922), (9020, 9042)]