20956740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1217}}^1$

素因数の和:1277

約数の個数: 96

約数和(自身を含む): 68753664

約数和(自身を除く): 47796924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 60, 70, 82, 84, 105, 123, 140, 164, 205, 210, 246, 287, 410, 420, 492, 574, 615, 820, 861, 1148, 1217, 1230, 1435, 1722, 2434, 2460, 2870, 3444, 3651, 4305, 4868, 5740, 6085, 7302, 8519, 8610, 12170, 14604, 17038, 17220, 18255, 24340, 25557, 34076, 36510, 42595, 49897, 51114, 73020, 85190, 99794, 102228, 127785, 149691, 170380, 199588, 249485, 255570, 299382, 349279, 498970, 511140, 598764, 698558, 748455, 997940, 1047837, 1397116, 1496910, 1746395, 2095674, 2993820, 3492790, 4191348, 5239185, 6985580, 10478370, 20956740]

約数ペア:

[(1, 20956740), (2, 10478370), (3, 6985580), (4, 5239185), (5, 4191348), (6, 3492790), (7, 2993820), (10, 2095674), (12, 1746395), (14, 1496910), (15, 1397116), (20, 1047837), (21, 997940), (28, 748455), (30, 698558), (35, 598764), (41, 511140), (42, 498970), (60, 349279), (70, 299382), (82, 255570), (84, 249485), (105, 199588), (123, 170380), (140, 149691), (164, 127785), (205, 102228), (210, 99794), (246, 85190), (287, 73020), (410, 51114), (420, 49897), (492, 42595), (574, 36510), (615, 34076), (820, 25557), (861, 24340), (1148, 18255), (1217, 17220), (1230, 17038), (1435, 14604), (1722, 12170), (2434, 8610), (2460, 8519), (2870, 7302), (3444, 6085), (3651, 5740), (4305, 4868)]