490167700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:590

約数の個数: 144

約数和(自身を含む): 1249920000

約数和(自身を除く): 759752300

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 47, 50, 55, 76, 94, 95, 100, 110, 188, 190, 209, 220, 235, 275, 380, 418, 470, 475, 499, 517, 550, 836, 893, 940, 950, 998, 1034, 1045, 1100, 1175, 1786, 1900, 1996, 2068, 2090, 2350, 2495, 2585, 3572, 4180, 4465, 4700, 4990, 5170, 5225, 5489, 8930, 9481, 9823, 9980, 10340, 10450, 10978, 12475, 12925, 17860, 18962, 19646, 20900, 21956, 22325, 23453, 24950, 25850, 27445, 37924, 39292, 44650, 46906, 47405, 49115, 49900, 51700, 54890, 89300, 93812, 94810, 98230, 104291, 109780, 117265, 137225, 189620, 196460, 208582, 234530, 237025, 245575, 257983, 274450, 417164, 445607, 469060, 474050, 491150, 515966, 521455, 548900, 586325, 891214, 948100, 982300, 1031932, 1042910, 1172650, 1289915, 1782428, 2085820, 2228035, 2345300, 2579830, 2607275, 4456070, 4901677, 5159660, 5214550, 6449575, 8912140, 9803354, 10429100, 11140175, 12899150, 19606708, 22280350, 24508385, 25798300, 44560700, 49016770, 98033540, 122541925, 245083850, 490167700]

約数ペア:

[(1, 490167700), (2, 245083850), (4, 122541925), (5, 98033540), (10, 49016770), (11, 44560700), (19, 25798300), (20, 24508385), (22, 22280350), (25, 19606708), (38, 12899150), (44, 11140175), (47, 10429100), (50, 9803354), (55, 8912140), (76, 6449575), (94, 5214550), (95, 5159660), (100, 4901677), (110, 4456070), (188, 2607275), (190, 2579830), (209, 2345300), (220, 2228035), (235, 2085820), (275, 1782428), (380, 1289915), (418, 1172650), (470, 1042910), (475, 1031932), (499, 982300), (517, 948100), (550, 891214), (836, 586325), (893, 548900), (940, 521455), (950, 515966), (998, 491150), (1034, 474050), (1045, 469060), (1100, 445607), (1175, 417164), (1786, 274450), (1900, 257983), (1996, 245575), (2068, 237025), (2090, 234530), (2350, 208582), (2495, 196460), (2585, 189620), (3572, 137225), (4180, 117265), (4465, 109780), (4700, 104291), (4990, 98230), (5170, 94810), (5225, 93812), (5489, 89300), (8930, 54890), (9481, 51700), (9823, 49900), (9980, 49115), (10340, 47405), (10450, 46906), (10978, 44650), (12475, 39292), (12925, 37924), (17860, 27445), (18962, 25850), (19646, 24950), (20900, 23453), (21956, 22325)]