20490360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:106

約数の個数: 192

約数和(自身を含む): 72420480

約数和(自身を除く): 51930120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 43, 44, 55, 57, 60, 66, 76, 86, 88, 95, 110, 114, 120, 129, 132, 152, 165, 172, 190, 209, 215, 220, 228, 258, 264, 285, 330, 344, 361, 380, 418, 430, 440, 456, 473, 516, 570, 627, 645, 660, 722, 760, 817, 836, 860, 946, 1032, 1045, 1083, 1140, 1254, 1290, 1320, 1419, 1444, 1634, 1672, 1720, 1805, 1892, 2090, 2166, 2280, 2365, 2451, 2508, 2580, 2838, 2888, 3135, 3268, 3610, 3784, 3971, 4085, 4180, 4332, 4730, 4902, 5016, 5160, 5415, 5676, 6270, 6536, 7095, 7220, 7942, 8170, 8360, 8664, 8987, 9460, 9804, 10830, 11352, 11913, 12255, 12540, 14190, 14440, 15523, 15884, 16340, 17974, 18920, 19608, 19855, 21660, 23826, 24510, 25080, 26961, 28380, 31046, 31768, 32680, 35948, 39710, 43320, 44935, 46569, 47652, 49020, 53922, 56760, 59565, 62092, 71896, 77615, 79420, 89870, 93138, 95304, 98040, 107844, 119130, 124184, 134805, 155230, 158840, 170753, 179740, 186276, 215688, 232845, 238260, 269610, 310460, 341506, 359480, 372552, 465690, 476520, 512259, 539220, 620920, 683012, 853765, 931380, 1024518, 1078440, 1366024, 1707530, 1862760, 2049036, 2561295, 3415060, 4098072, 5122590, 6830120, 10245180, 20490360]

約数ペア:

[(1, 20490360), (2, 10245180), (3, 6830120), (4, 5122590), (5, 4098072), (6, 3415060), (8, 2561295), (10, 2049036), (11, 1862760), (12, 1707530), (15, 1366024), (19, 1078440), (20, 1024518), (22, 931380), (24, 853765), (30, 683012), (33, 620920), (38, 539220), (40, 512259), (43, 476520), (44, 465690), (55, 372552), (57, 359480), (60, 341506), (66, 310460), (76, 269610), (86, 238260), (88, 232845), (95, 215688), (110, 186276), (114, 179740), (120, 170753), (129, 158840), (132, 155230), (152, 134805), (165, 124184), (172, 119130), (190, 107844), (209, 98040), (215, 95304), (220, 93138), (228, 89870), (258, 79420), (264, 77615), (285, 71896), (330, 62092), (344, 59565), (361, 56760), (380, 53922), (418, 49020), (430, 47652), (440, 46569), (456, 44935), (473, 43320), (516, 39710), (570, 35948), (627, 32680), (645, 31768), (660, 31046), (722, 28380), (760, 26961), (817, 25080), (836, 24510), (860, 23826), (946, 21660), (1032, 19855), (1045, 19608), (1083, 18920), (1140, 17974), (1254, 16340), (1290, 15884), (1320, 15523), (1419, 14440), (1444, 14190), (1634, 12540), (1672, 12255), (1720, 11913), (1805, 11352), (1892, 10830), (2090, 9804), (2166, 9460), (2280, 8987), (2365, 8664), (2451, 8360), (2508, 8170), (2580, 7942), (2838, 7220), (2888, 7095), (3135, 6536), (3268, 6270), (3610, 5676), (3784, 5415), (3971, 5160), (4085, 5016), (4180, 4902), (4332, 4730)]