28486700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 74995200

約数和(自身を除く): 46508500

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 29, 38, 44, 47, 50, 55, 58, 76, 94, 95, 100, 110, 116, 145, 188, 190, 209, 220, 235, 275, 290, 319, 380, 418, 470, 475, 517, 550, 551, 580, 638, 725, 836, 893, 940, 950, 1034, 1045, 1100, 1102, 1175, 1276, 1363, 1450, 1595, 1786, 1900, 2068, 2090, 2204, 2350, 2585, 2726, 2755, 2900, 3190, 3572, 4180, 4465, 4700, 5170, 5225, 5452, 5510, 6061, 6380, 6815, 7975, 8930, 9823, 10340, 10450, 11020, 12122, 12925, 13630, 13775, 14993, 15950, 17860, 19646, 20900, 22325, 24244, 25850, 25897, 27260, 27550, 29986, 30305, 31900, 34075, 39292, 44650, 49115, 51700, 51794, 55100, 59972, 60610, 68150, 74965, 89300, 98230, 103588, 121220, 129485, 136300, 149930, 151525, 196460, 245575, 258970, 284867, 299860, 303050, 374825, 491150, 517940, 569734, 606100, 647425, 749650, 982300, 1139468, 1294850, 1424335, 1499300, 2589700, 2848670, 5697340, 7121675, 14243350, 28486700]

約数ペア:

[(1, 28486700), (2, 14243350), (4, 7121675), (5, 5697340), (10, 2848670), (11, 2589700), (19, 1499300), (20, 1424335), (22, 1294850), (25, 1139468), (29, 982300), (38, 749650), (44, 647425), (47, 606100), (50, 569734), (55, 517940), (58, 491150), (76, 374825), (94, 303050), (95, 299860), (100, 284867), (110, 258970), (116, 245575), (145, 196460), (188, 151525), (190, 149930), (209, 136300), (220, 129485), (235, 121220), (275, 103588), (290, 98230), (319, 89300), (380, 74965), (418, 68150), (470, 60610), (475, 59972), (517, 55100), (550, 51794), (551, 51700), (580, 49115), (638, 44650), (725, 39292), (836, 34075), (893, 31900), (940, 30305), (950, 29986), (1034, 27550), (1045, 27260), (1100, 25897), (1102, 25850), (1175, 24244), (1276, 22325), (1363, 20900), (1450, 19646), (1595, 17860), (1786, 15950), (1900, 14993), (2068, 13775), (2090, 13630), (2204, 12925), (2350, 12122), (2585, 11020), (2726, 10450), (2755, 10340), (2900, 9823), (3190, 8930), (3572, 7975), (4180, 6815), (4465, 6380), (4700, 6061), (5170, 5510), (5225, 5452)]