20144978

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 18159022

約数列:

[1, 2, 7, 14, 19, 31, 38, 49, 62, 98, 133, 217, 266, 349, 434, 589, 698, 931, 1178, 1519, 1862, 2443, 3038, 4123, 4886, 6631, 8246, 10819, 13262, 17101, 21638, 28861, 34202, 46417, 57722, 75733, 92834, 151466, 205561, 324919, 411122, 530131, 649838, 1060262, 1438927, 2877854, 10072489, 20144978]

約数ペア:

[(1, 20144978), (2, 10072489), (7, 2877854), (14, 1438927), (19, 1060262), (31, 649838), (38, 530131), (49, 411122), (62, 324919), (98, 205561), (133, 151466), (217, 92834), (266, 75733), (349, 57722), (434, 46417), (589, 34202), (698, 28861), (931, 21638), (1178, 17101), (1519, 13262), (1862, 10819), (2443, 8246), (3038, 6631), (4123, 4886)]