81680164

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{937}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 159685120

約数和(自身を除く): 78004956

約数列:

[1, 2, 4, 19, 31, 37, 38, 62, 74, 76, 124, 148, 589, 703, 937, 1147, 1178, 1406, 1874, 2294, 2356, 2812, 3748, 4588, 17803, 21793, 29047, 34669, 35606, 43586, 58094, 69338, 71212, 87172, 116188, 138676, 551893, 658711, 1074739, 1103786, 1317422, 2149478, 2207572, 2634844, 4298956, 20420041, 40840082, 81680164]

約数ペア:

[(1, 81680164), (2, 40840082), (4, 20420041), (19, 4298956), (31, 2634844), (37, 2207572), (38, 2149478), (62, 1317422), (74, 1103786), (76, 1074739), (124, 658711), (148, 551893), (589, 138676), (703, 116188), (937, 87172), (1147, 71212), (1178, 69338), (1406, 58094), (1874, 43586), (2294, 35606), (2356, 34669), (2812, 29047), (3748, 21793), (4588, 17803)]