27981110

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 55632096

約数和(自身を除く): 27650986

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 337, 361, 437, 674, 722, 874, 1685, 1805, 2185, 3370, 3610, 4370, 6403, 7751, 8303, 12806, 15502, 16606, 32015, 38755, 41515, 64030, 77510, 83030, 121657, 147269, 243314, 294538, 608285, 736345, 1216570, 1472690, 2798111, 5596222, 13990555, 27981110]

約数ペア:

[(1, 27981110), (2, 13990555), (5, 5596222), (10, 2798111), (19, 1472690), (23, 1216570), (38, 736345), (46, 608285), (95, 294538), (115, 243314), (190, 147269), (230, 121657), (337, 83030), (361, 77510), (437, 64030), (674, 41515), (722, 38755), (874, 32015), (1685, 16606), (1805, 15502), (2185, 12806), (3370, 8303), (3610, 7751), (4370, 6403)]