20968140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:427

約数の個数: 96

約数和(自身を含む): 63370944

約数和(自身を除く): 42402804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 61, 68, 85, 102, 122, 170, 183, 204, 244, 255, 305, 337, 340, 366, 510, 610, 674, 732, 915, 1011, 1020, 1037, 1220, 1348, 1685, 1830, 2022, 2074, 3111, 3370, 3660, 4044, 4148, 5055, 5185, 5729, 6222, 6740, 10110, 10370, 11458, 12444, 15555, 17187, 20220, 20557, 20740, 22916, 28645, 31110, 34374, 41114, 57290, 61671, 62220, 68748, 82228, 85935, 102785, 114580, 123342, 171870, 205570, 246684, 308355, 343740, 349469, 411140, 616710, 698938, 1048407, 1233420, 1397876, 1747345, 2096814, 3494690, 4193628, 5242035, 6989380, 10484070, 20968140]

約数ペア:

[(1, 20968140), (2, 10484070), (3, 6989380), (4, 5242035), (5, 4193628), (6, 3494690), (10, 2096814), (12, 1747345), (15, 1397876), (17, 1233420), (20, 1048407), (30, 698938), (34, 616710), (51, 411140), (60, 349469), (61, 343740), (68, 308355), (85, 246684), (102, 205570), (122, 171870), (170, 123342), (183, 114580), (204, 102785), (244, 85935), (255, 82228), (305, 68748), (337, 62220), (340, 61671), (366, 57290), (510, 41114), (610, 34374), (674, 31110), (732, 28645), (915, 22916), (1011, 20740), (1020, 20557), (1037, 20220), (1220, 17187), (1348, 15555), (1685, 12444), (1830, 11458), (2022, 10370), (2074, 10110), (3111, 6740), (3370, 6222), (3660, 5729), (4044, 5185), (4148, 5055)]