81737488

素因数分解:

$2^4\times 7^2\times {\mathrm{137}}^1\times {\mathrm{761}}^1$

素因数の和:920

約数の個数: 60

約数和(自身を含む): 185810652

約数和(自身を除く): 104073164

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 137, 196, 274, 392, 548, 761, 784, 959, 1096, 1522, 1918, 2192, 3044, 3836, 5327, 6088, 6713, 7672, 10654, 12176, 13426, 15344, 21308, 26852, 37289, 42616, 53704, 74578, 85232, 104257, 107408, 149156, 208514, 298312, 417028, 596624, 729799, 834056, 1459598, 1668112, 2919196, 5108593, 5838392, 10217186, 11676784, 20434372, 40868744, 81737488]

約数ペア:

[(1, 81737488), (2, 40868744), (4, 20434372), (7, 11676784), (8, 10217186), (14, 5838392), (16, 5108593), (28, 2919196), (49, 1668112), (56, 1459598), (98, 834056), (112, 729799), (137, 596624), (196, 417028), (274, 298312), (392, 208514), (548, 149156), (761, 107408), (784, 104257), (959, 85232), (1096, 74578), (1522, 53704), (1918, 42616), (2192, 37289), (3044, 26852), (3836, 21308), (5327, 15344), (6088, 13426), (6713, 12176), (7672, 10654)]