1821014720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{42787}}^1$

素因数の和:42830

約数の個数: 112

約数和(自身を含む): 5216712960

約数和(自身を除く): 3395698240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 532, 560, 608, 665, 760, 1064, 1120, 1216, 1330, 1520, 2128, 2240, 2660, 3040, 4256, 5320, 6080, 8512, 10640, 21280, 42560, 42787, 85574, 171148, 213935, 299509, 342296, 427870, 599018, 684592, 812953, 855740, 1198036, 1369184, 1497545, 1625906, 1711480, 2396072, 2738368, 2995090, 3251812, 3422960, 4064765, 4792144, 5690671, 5990180, 6503624, 6845920, 8129530, 9584288, 11381342, 11980360, 13007248, 13691840, 16259060, 19168576, 22762684, 23960720, 26014496, 28453355, 32518120, 45525368, 47921440, 52028992, 56906710, 65036240, 91050736, 95842880, 113813420, 130072480, 182101472, 227626840, 260144960, 364202944, 455253680, 910507360, 1821014720]

約数ペア:

[(1, 1821014720), (2, 910507360), (4, 455253680), (5, 364202944), (7, 260144960), (8, 227626840), (10, 182101472), (14, 130072480), (16, 113813420), (19, 95842880), (20, 91050736), (28, 65036240), (32, 56906710), (35, 52028992), (38, 47921440), (40, 45525368), (56, 32518120), (64, 28453355), (70, 26014496), (76, 23960720), (80, 22762684), (95, 19168576), (112, 16259060), (133, 13691840), (140, 13007248), (152, 11980360), (160, 11381342), (190, 9584288), (224, 8129530), (266, 6845920), (280, 6503624), (304, 5990180), (320, 5690671), (380, 4792144), (448, 4064765), (532, 3422960), (560, 3251812), (608, 2995090), (665, 2738368), (760, 2396072), (1064, 1711480), (1120, 1625906), (1216, 1497545), (1330, 1369184), (1520, 1198036), (2128, 855740), (2240, 812953), (2660, 684592), (3040, 599018), (4256, 427870), (5320, 342296), (6080, 299509), (8512, 213935), (10640, 171148), (21280, 85574), (42560, 42787)]