20998642000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{36583}}^1$

素因数の和:36654

約数の個数: 160

約数和(自身を含む): 59445195264

約数和(自身を除く): 38446553264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 41, 50, 56, 70, 80, 82, 100, 112, 125, 140, 164, 175, 200, 205, 250, 280, 287, 328, 350, 400, 410, 500, 560, 574, 656, 700, 820, 875, 1000, 1025, 1148, 1400, 1435, 1640, 1750, 2000, 2050, 2296, 2800, 2870, 3280, 3500, 4100, 4592, 5125, 5740, 7000, 7175, 8200, 10250, 11480, 14000, 14350, 16400, 20500, 22960, 28700, 35875, 36583, 41000, 57400, 71750, 73166, 82000, 114800, 143500, 146332, 182915, 256081, 287000, 292664, 365830, 512162, 574000, 585328, 731660, 914575, 1024324, 1280405, 1463320, 1499903, 1829150, 2048648, 2560810, 2926640, 2999806, 3658300, 4097296, 4572875, 5121620, 5999612, 6402025, 7316600, 7499515, 9145750, 10243240, 10499321, 11999224, 12804050, 14633200, 14999030, 18291500, 20486480, 20998642, 23998448, 25608100, 29998060, 32010125, 36583000, 37497575, 41997284, 51216200, 52496605, 59996120, 64020250, 73166000, 74995150, 83994568, 102432400, 104993210, 119992240, 128040500, 149990300, 167989136, 187487875, 209986420, 256081000, 262483025, 299980600, 374975750, 419972840, 512162000, 524966050, 599961200, 749951500, 839945680, 1049932100, 1312415125, 1499903000, 2099864200, 2624830250, 2999806000, 4199728400, 5249660500, 10499321000, 20998642000]

約数ペア:

[(1, 20998642000), (2, 10499321000), (4, 5249660500), (5, 4199728400), (7, 2999806000), (8, 2624830250), (10, 2099864200), (14, 1499903000), (16, 1312415125), (20, 1049932100), (25, 839945680), (28, 749951500), (35, 599961200), (40, 524966050), (41, 512162000), (50, 419972840), (56, 374975750), (70, 299980600), (80, 262483025), (82, 256081000), (100, 209986420), (112, 187487875), (125, 167989136), (140, 149990300), (164, 128040500), (175, 119992240), (200, 104993210), (205, 102432400), (250, 83994568), (280, 74995150), (287, 73166000), (328, 64020250), (350, 59996120), (400, 52496605), (410, 51216200), (500, 41997284), (560, 37497575), (574, 36583000), (656, 32010125), (700, 29998060), (820, 25608100), (875, 23998448), (1000, 20998642), (1025, 20486480), (1148, 18291500), (1400, 14999030), (1435, 14633200), (1640, 12804050), (1750, 11999224), (2000, 10499321), (2050, 10243240), (2296, 9145750), (2800, 7499515), (2870, 7316600), (3280, 6402025), (3500, 5999612), (4100, 5121620), (4592, 4572875), (5125, 4097296), (5740, 3658300), (7000, 2999806), (7175, 2926640), (8200, 2560810), (10250, 2048648), (11480, 1829150), (14000, 1499903), (14350, 1463320), (16400, 1280405), (20500, 1024324), (22960, 914575), (28700, 731660), (35875, 585328), (36583, 574000), (41000, 512162), (57400, 365830), (71750, 292664), (73166, 287000), (82000, 256081), (114800, 182915), (143500, 146332)]