68746180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1381}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 153236160

約数和(自身を除く): 84489980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 380, 524, 655, 1310, 1381, 2489, 2620, 2762, 4978, 5524, 6905, 9956, 12445, 13810, 24890, 26239, 27620, 49780, 52478, 104956, 131195, 180911, 262390, 361822, 524780, 723644, 904555, 1809110, 3437309, 3618220, 6874618, 13749236, 17186545, 34373090, 68746180]

約数ペア:

[(1, 68746180), (2, 34373090), (4, 17186545), (5, 13749236), (10, 6874618), (19, 3618220), (20, 3437309), (38, 1809110), (76, 904555), (95, 723644), (131, 524780), (190, 361822), (262, 262390), (380, 180911), (524, 131195), (655, 104956), (1310, 52478), (1381, 49780), (2489, 27620), (2620, 26239), (2762, 24890), (4978, 13810), (5524, 12445), (6905, 9956)]