16654780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 36126720

約数和(自身を除く): 19471940

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 127, 158, 166, 254, 316, 332, 395, 415, 508, 635, 790, 830, 1270, 1580, 1660, 2540, 6557, 10033, 10541, 13114, 20066, 21082, 26228, 32785, 40132, 42164, 50165, 52705, 65570, 100330, 105410, 131140, 200660, 210820, 832739, 1665478, 3330956, 4163695, 8327390, 16654780]

約数ペア:

[(1, 16654780), (2, 8327390), (4, 4163695), (5, 3330956), (10, 1665478), (20, 832739), (79, 210820), (83, 200660), (127, 131140), (158, 105410), (166, 100330), (254, 65570), (316, 52705), (332, 50165), (395, 42164), (415, 40132), (508, 32785), (635, 26228), (790, 21082), (830, 20066), (1270, 13114), (1580, 10541), (1660, 10033), (2540, 6557)]