2019408920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1049}}^1$

素因数の和:1245

約数の個数: 128

約数和(自身を含む): 5103000000

約数和(自身を除く): 3083591080

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 149, 152, 170, 190, 298, 323, 340, 380, 596, 646, 680, 745, 760, 1049, 1192, 1292, 1490, 1615, 2098, 2533, 2584, 2831, 2980, 3230, 4196, 5066, 5245, 5662, 5960, 6460, 8392, 10132, 10490, 11324, 12665, 12920, 14155, 17833, 19931, 20264, 20980, 22648, 25330, 28310, 35666, 39862, 41960, 48127, 50660, 56620, 71332, 79724, 89165, 96254, 99655, 101320, 113240, 142664, 156301, 159448, 178330, 192508, 199310, 240635, 312602, 338827, 356660, 385016, 398620, 481270, 625204, 677654, 713320, 781505, 797240, 962540, 1250408, 1355308, 1563010, 1694135, 1925080, 2657117, 2710616, 2969719, 3126020, 3388270, 5314234, 5939438, 6252040, 6776540, 10628468, 11878876, 13285585, 13553080, 14848595, 21256936, 23757752, 26571170, 29697190, 50485223, 53142340, 59394380, 100970446, 106284680, 118788760, 201940892, 252426115, 403881784, 504852230, 1009704460, 2019408920]

約数ペア:

[(1, 2019408920), (2, 1009704460), (4, 504852230), (5, 403881784), (8, 252426115), (10, 201940892), (17, 118788760), (19, 106284680), (20, 100970446), (34, 59394380), (38, 53142340), (40, 50485223), (68, 29697190), (76, 26571170), (85, 23757752), (95, 21256936), (136, 14848595), (149, 13553080), (152, 13285585), (170, 11878876), (190, 10628468), (298, 6776540), (323, 6252040), (340, 5939438), (380, 5314234), (596, 3388270), (646, 3126020), (680, 2969719), (745, 2710616), (760, 2657117), (1049, 1925080), (1192, 1694135), (1292, 1563010), (1490, 1355308), (1615, 1250408), (2098, 962540), (2533, 797240), (2584, 781505), (2831, 713320), (2980, 677654), (3230, 625204), (4196, 481270), (5066, 398620), (5245, 385016), (5662, 356660), (5960, 338827), (6460, 312602), (8392, 240635), (10132, 199310), (10490, 192508), (11324, 178330), (12665, 159448), (12920, 156301), (14155, 142664), (17833, 113240), (19931, 101320), (20264, 99655), (20980, 96254), (22648, 89165), (25330, 79724), (28310, 71332), (35666, 56620), (39862, 50660), (41960, 48127)]