20983600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:299

約数の個数: 120

約数和(自身を含む): 58121280

約数和(自身を除く): 37137680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 80, 88, 95, 100, 110, 152, 176, 190, 200, 209, 220, 251, 275, 304, 380, 400, 418, 440, 475, 502, 550, 760, 836, 880, 950, 1004, 1045, 1100, 1255, 1520, 1672, 1900, 2008, 2090, 2200, 2510, 2761, 3344, 3800, 4016, 4180, 4400, 4769, 5020, 5225, 5522, 6275, 7600, 8360, 9538, 10040, 10450, 11044, 12550, 13805, 16720, 19076, 20080, 20900, 22088, 23845, 25100, 27610, 38152, 41800, 44176, 47690, 50200, 52459, 55220, 69025, 76304, 83600, 95380, 100400, 104918, 110440, 119225, 138050, 190760, 209836, 220880, 238450, 262295, 276100, 381520, 419672, 476900, 524590, 552200, 839344, 953800, 1049180, 1104400, 1311475, 1907600, 2098360, 2622950, 4196720, 5245900, 10491800, 20983600]

約数ペア:

[(1, 20983600), (2, 10491800), (4, 5245900), (5, 4196720), (8, 2622950), (10, 2098360), (11, 1907600), (16, 1311475), (19, 1104400), (20, 1049180), (22, 953800), (25, 839344), (38, 552200), (40, 524590), (44, 476900), (50, 419672), (55, 381520), (76, 276100), (80, 262295), (88, 238450), (95, 220880), (100, 209836), (110, 190760), (152, 138050), (176, 119225), (190, 110440), (200, 104918), (209, 100400), (220, 95380), (251, 83600), (275, 76304), (304, 69025), (380, 55220), (400, 52459), (418, 50200), (440, 47690), (475, 44176), (502, 41800), (550, 38152), (760, 27610), (836, 25100), (880, 23845), (950, 22088), (1004, 20900), (1045, 20080), (1100, 19076), (1255, 16720), (1520, 13805), (1672, 12550), (1900, 11044), (2008, 10450), (2090, 10040), (2200, 9538), (2510, 8360), (2761, 7600), (3344, 6275), (3800, 5522), (4016, 5225), (4180, 5020), (4400, 4769)]