81858712320

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1686

約数の個数: 1152

約数和(自身を含む): 381459456000

約数和(自身を除く): 299600743680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 24, 27, 28, 30, 32, 33, 35, 36, 38, 40, 42, 44, 45, 48, 54, 55, 56, 57, 60, 63, 64, 66, 70, 72, 76, 77, 80, 84, 88, 90, 95, 96, 99, 105, 108, 110, 112, 114, 120, 126, 128, 132, 133, 135, 140, 144, 152, 154, 160, 165, 168, 171, 176, 180, 189, 190, 192, 198, 209, 210, 216, 220, 224, 228, 231, 240, 252, 256, 264, 266, 270, 280, 285, 288, 297, 304, 308, 315, 320, 330, 336, 342, 352, 360, 378, 380, 384, 385, 396, 399, 418, 420, 432, 440, 448, 456, 462, 480, 495, 504, 513, 528, 532, 540, 560, 570, 576, 594, 608, 616, 627, 630, 640, 660, 665, 672, 684, 693, 704, 720, 756, 760, 768, 770, 792, 798, 836, 840, 855, 864, 880, 896, 912, 924, 945, 960, 990, 1008, 1026, 1045, 1056, 1064, 1080, 1120, 1140, 1152, 1155, 1188, 1197, 1216, 1232, 1254, 1260, 1280, 1320, 1330, 1344, 1368, 1386, 1408, 1440, 1463, 1485, 1512, 1520, 1540, 1584, 1596, 1619, 1672, 1680, 1710, 1728, 1760, 1792, 1824, 1848, 1881, 1890, 1920, 1980, 1995, 2016, 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約数ペア:

[(1, 81858712320), (2, 40929356160), (3, 27286237440), (4, 20464678080), (5, 16371742464), (6, 13643118720), (7, 11694101760), (8, 10232339040), (9, 9095412480), (10, 8185871232), (11, 7441701120), (12, 6821559360), (14, 5847050880), (15, 5457247488), (16, 5116169520), (18, 4547706240), (19, 4308353280), (20, 4092935616), (21, 3898033920), (22, 3720850560), (24, 3410779680), (27, 3031804160), (28, 2923525440), (30, 2728623744), (32, 2558084760), (33, 2480567040), (35, 2338820352), (36, 2273853120), (38, 2154176640), (40, 2046467808), (42, 1949016960), (44, 1860425280), (45, 1819082496), (48, 1705389840), (54, 1515902080), (55, 1488340224), (56, 1461762720), (57, 1436117760), (60, 1364311872), (63, 1299344640), (64, 1279042380), (66, 1240283520), (70, 1169410176), (72, 1136926560), (76, 1077088320), (77, 1063100160), (80, 1023233904), (84, 974508480), (88, 930212640), (90, 909541248), (95, 861670656), (96, 852694920), (99, 826855680), (105, 779606784), (108, 757951040), (110, 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