72947020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{337}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 156723840

約数和(自身を除く): 83776820

約数列:

[1, 2, 4, 5, 10, 20, 79, 137, 158, 274, 316, 337, 395, 548, 674, 685, 790, 1348, 1370, 1580, 1685, 2740, 3370, 6740, 10823, 21646, 26623, 43292, 46169, 53246, 54115, 92338, 106492, 108230, 133115, 184676, 216460, 230845, 266230, 461690, 532460, 923380, 3647351, 7294702, 14589404, 18236755, 36473510, 72947020]

約数ペア:

[(1, 72947020), (2, 36473510), (4, 18236755), (5, 14589404), (10, 7294702), (20, 3647351), (79, 923380), (137, 532460), (158, 461690), (274, 266230), (316, 230845), (337, 216460), (395, 184676), (548, 133115), (674, 108230), (685, 106492), (790, 92338), (1348, 54115), (1370, 53246), (1580, 46169), (1685, 43292), (2740, 26623), (3370, 21646), (6740, 10823)]