20840631840

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:274

約数の個数: 1152

約数和(自身を含む): 93575139840

約数和(自身を除く): 72734508000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 24, 28, 30, 32, 34, 35, 36, 37, 38, 40, 42, 45, 48, 51, 56, 57, 60, 63, 68, 70, 72, 74, 76, 80, 84, 85, 90, 95, 96, 102, 105, 111, 112, 114, 119, 120, 126, 133, 136, 140, 144, 148, 152, 153, 160, 168, 170, 171, 173, 180, 185, 190, 204, 210, 222, 224, 228, 238, 240, 252, 255, 259, 266, 272, 280, 285, 288, 296, 304, 306, 315, 323, 333, 336, 340, 342, 346, 357, 360, 370, 380, 399, 408, 420, 444, 456, 476, 480, 504, 510, 518, 519, 532, 544, 555, 560, 570, 592, 595, 608, 612, 629, 630, 646, 665, 666, 672, 680, 684, 692, 703, 714, 720, 740, 760, 765, 777, 798, 816, 840, 855, 865, 888, 912, 952, 969, 1008, 1020, 1036, 1038, 1064, 1071, 1110, 1120, 1140, 1184, 1190, 1197, 1211, 1224, 1258, 1260, 1292, 1295, 1330, 1332, 1360, 1368, 1384, 1406, 1428, 1440, 1480, 1520, 1530, 1554, 1557, 1596, 1615, 1632, 1665, 1680, 1710, 1730, 1776, 1785, 1824, 1887, 1904, 1938, 1995, 2016, 2040, 2072, 2076, 2109, 2128, 2142, 2220, 2261, 2280, 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約数ペア:

[(1, 20840631840), (2, 10420315920), (3, 6946877280), (4, 5210157960), (5, 4168126368), (6, 3473438640), (7, 2977233120), (8, 2605078980), (9, 2315625760), (10, 2084063184), (12, 1736719320), (14, 1488616560), (15, 1389375456), (16, 1302539490), (17, 1225919520), (18, 1157812880), (19, 1096875360), (20, 1042031592), (21, 992411040), (24, 868359660), (28, 744308280), (30, 694687728), (32, 651269745), (34, 612959760), (35, 595446624), (36, 578906440), (37, 563260320), (38, 548437680), (40, 521015796), (42, 496205520), (45, 463125152), (48, 434179830), (51, 408639840), (56, 372154140), (57, 365625120), (60, 347343864), (63, 330803680), (68, 306479880), (70, 297723312), (72, 289453220), (74, 281630160), (76, 274218840), (80, 260507898), (84, 248102760), (85, 245183904), (90, 231562576), (95, 219375072), (96, 217089915), (102, 204319920), (105, 198482208), (111, 187753440), (112, 186077070), (114, 182812560), (119, 175131360), (120, 173671932), (126, 165401840), (133, 156696480), (136, 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