1278902900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{853}}^1$

素因数の和:954

約数の個数: 144

約数和(自身を含む): 3202295040

約数和(自身を除く): 1923392140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 47, 50, 55, 58, 94, 100, 110, 116, 145, 188, 220, 235, 275, 290, 319, 470, 517, 550, 580, 638, 725, 853, 940, 1034, 1100, 1175, 1276, 1363, 1450, 1595, 1706, 2068, 2350, 2585, 2726, 2900, 3190, 3412, 4265, 4700, 5170, 5452, 6380, 6815, 7975, 8530, 9383, 10340, 12925, 13630, 14993, 15950, 17060, 18766, 21325, 24737, 25850, 27260, 29986, 31900, 34075, 37532, 40091, 42650, 46915, 49474, 51700, 59972, 68150, 74965, 80182, 85300, 93830, 98948, 123685, 136300, 149930, 160364, 187660, 200455, 234575, 247370, 272107, 299860, 374825, 400910, 441001, 469150, 494740, 544214, 618425, 749650, 801820, 882002, 938300, 1002275, 1088428, 1162639, 1236850, 1360535, 1499300, 1764004, 2004550, 2205005, 2325278, 2473700, 2721070, 4009100, 4410010, 4650556, 5442140, 5813195, 6802675, 8820020, 11025025, 11626390, 12789029, 13605350, 22050050, 23252780, 25578058, 27210700, 29065975, 44100100, 51156116, 58131950, 63945145, 116263900, 127890290, 255780580, 319725725, 639451450, 1278902900]

約数ペア:

[(1, 1278902900), (2, 639451450), (4, 319725725), (5, 255780580), (10, 127890290), (11, 116263900), (20, 63945145), (22, 58131950), (25, 51156116), (29, 44100100), (44, 29065975), (47, 27210700), (50, 25578058), (55, 23252780), (58, 22050050), (94, 13605350), (100, 12789029), (110, 11626390), (116, 11025025), (145, 8820020), (188, 6802675), (220, 5813195), (235, 5442140), (275, 4650556), (290, 4410010), (319, 4009100), (470, 2721070), (517, 2473700), (550, 2325278), (580, 2205005), (638, 2004550), (725, 1764004), (853, 1499300), (940, 1360535), (1034, 1236850), (1100, 1162639), (1175, 1088428), (1276, 1002275), (1363, 938300), (1450, 882002), (1595, 801820), (1706, 749650), (2068, 618425), (2350, 544214), (2585, 494740), (2726, 469150), (2900, 441001), (3190, 400910), (3412, 374825), (4265, 299860), (4700, 272107), (5170, 247370), (5452, 234575), (6380, 200455), (6815, 187660), (7975, 160364), (8530, 149930), (9383, 136300), (10340, 123685), (12925, 98948), (13630, 93830), (14993, 85300), (15950, 80182), (17060, 74965), (18766, 68150), (21325, 59972), (24737, 51700), (25850, 49474), (27260, 46915), (29986, 42650), (31900, 40091), (34075, 37532)]