81690408

素因数分解:

$2^3\times 3^2\times {\mathrm{811}}^1\times {\mathrm{1399}}^1$

素因数の和:2222

約数の個数: 48

約数和(自身を含む): 221676000

約数和(自身を除く): 139985592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 811, 1399, 1622, 2433, 2798, 3244, 4197, 4866, 5596, 6488, 7299, 8394, 9732, 11192, 12591, 14598, 16788, 19464, 25182, 29196, 33576, 50364, 58392, 100728, 1134589, 2269178, 3403767, 4538356, 6807534, 9076712, 10211301, 13615068, 20422602, 27230136, 40845204, 81690408]

約数ペア:

[(1, 81690408), (2, 40845204), (3, 27230136), (4, 20422602), (6, 13615068), (8, 10211301), (9, 9076712), (12, 6807534), (18, 4538356), (24, 3403767), (36, 2269178), (72, 1134589), (811, 100728), (1399, 58392), (1622, 50364), (2433, 33576), (2798, 29196), (3244, 25182), (4197, 19464), (4866, 16788), (5596, 14598), (6488, 12591), (7299, 11192), (8394, 9732)]