17966180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 38949120

約数和(自身を除く): 20982940

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 137, 158, 166, 274, 316, 332, 395, 415, 548, 685, 790, 830, 1370, 1580, 1660, 2740, 6557, 10823, 11371, 13114, 21646, 22742, 26228, 32785, 43292, 45484, 54115, 56855, 65570, 108230, 113710, 131140, 216460, 227420, 898309, 1796618, 3593236, 4491545, 8983090, 17966180]

約数ペア:

[(1, 17966180), (2, 8983090), (4, 4491545), (5, 3593236), (10, 1796618), (20, 898309), (79, 227420), (83, 216460), (137, 131140), (158, 113710), (166, 108230), (274, 65570), (316, 56855), (332, 54115), (395, 45484), (415, 43292), (548, 32785), (685, 26228), (790, 22742), (830, 21646), (1370, 13114), (1580, 11371), (1660, 10823), (2740, 6557)]