720297220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{887}}^1\times {\mathrm{2137}}^1$

素因数の和:3052

約数の個数: 48

約数和(自身を含む): 1594776960

約数和(自身を除く): 874479740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 887, 1774, 2137, 3548, 4274, 4435, 8548, 8870, 10685, 16853, 17740, 21370, 33706, 40603, 42740, 67412, 81206, 84265, 162412, 168530, 203015, 337060, 406030, 812060, 1895519, 3791038, 7582076, 9477595, 18955190, 36014861, 37910380, 72029722, 144059444, 180074305, 360148610, 720297220]

約数ペア:

[(1, 720297220), (2, 360148610), (4, 180074305), (5, 144059444), (10, 72029722), (19, 37910380), (20, 36014861), (38, 18955190), (76, 9477595), (95, 7582076), (190, 3791038), (380, 1895519), (887, 812060), (1774, 406030), (2137, 337060), (3548, 203015), (4274, 168530), (4435, 162412), (8548, 84265), (8870, 81206), (10685, 67412), (16853, 42740), (17740, 40603), (21370, 33706)]