51890120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 124746480

約数和(自身を除く): 72856360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 137, 170, 274, 340, 548, 557, 680, 685, 1096, 1114, 1370, 2228, 2329, 2740, 2785, 4456, 4658, 5480, 5570, 9316, 9469, 11140, 11645, 18632, 18938, 22280, 23290, 37876, 46580, 47345, 75752, 76309, 93160, 94690, 152618, 189380, 305236, 378760, 381545, 610472, 763090, 1297253, 1526180, 2594506, 3052360, 5189012, 6486265, 10378024, 12972530, 25945060, 51890120]

約数ペア:

[(1, 51890120), (2, 25945060), (4, 12972530), (5, 10378024), (8, 6486265), (10, 5189012), (17, 3052360), (20, 2594506), (34, 1526180), (40, 1297253), (68, 763090), (85, 610472), (136, 381545), (137, 378760), (170, 305236), (274, 189380), (340, 152618), (548, 94690), (557, 93160), (680, 76309), (685, 75752), (1096, 47345), (1114, 46580), (1370, 37876), (2228, 23290), (2329, 22280), (2740, 18938), (2785, 18632), (4456, 11645), (4658, 11140), (5480, 9469), (5570, 9316)]