20170360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 54295920

約数和(自身を除く): 34125560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 82, 98, 140, 164, 196, 205, 245, 251, 280, 287, 328, 392, 410, 490, 502, 574, 820, 980, 1004, 1148, 1255, 1435, 1640, 1757, 1960, 2008, 2009, 2296, 2510, 2870, 3514, 4018, 5020, 5740, 7028, 8036, 8785, 10040, 10045, 10291, 11480, 12299, 14056, 16072, 17570, 20090, 20582, 24598, 35140, 40180, 41164, 49196, 51455, 61495, 70280, 72037, 80360, 82328, 98392, 102910, 122990, 144074, 205820, 245980, 288148, 360185, 411640, 491960, 504259, 576296, 720370, 1008518, 1440740, 2017036, 2521295, 2881480, 4034072, 5042590, 10085180, 20170360]

約数ペア:

[(1, 20170360), (2, 10085180), (4, 5042590), (5, 4034072), (7, 2881480), (8, 2521295), (10, 2017036), (14, 1440740), (20, 1008518), (28, 720370), (35, 576296), (40, 504259), (41, 491960), (49, 411640), (56, 360185), (70, 288148), (82, 245980), (98, 205820), (140, 144074), (164, 122990), (196, 102910), (205, 98392), (245, 82328), (251, 80360), (280, 72037), (287, 70280), (328, 61495), (392, 51455), (410, 49196), (490, 41164), (502, 40180), (574, 35140), (820, 24598), (980, 20582), (1004, 20090), (1148, 17570), (1255, 16072), (1435, 14056), (1640, 12299), (1757, 11480), (1960, 10291), (2008, 10045), (2009, 10040), (2296, 8785), (2510, 8036), (2870, 7028), (3514, 5740), (4018, 5020)]