81778816

素因数分解:

$2^7\times 7^1\times {\mathrm{107}}^1\times {\mathrm{853}}^1$

素因数の和:981

約数の個数: 64

約数和(自身を含む): 188153280

約数和(自身を除く): 106374464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 107, 112, 128, 214, 224, 428, 448, 749, 853, 856, 896, 1498, 1706, 1712, 2996, 3412, 3424, 5971, 5992, 6824, 6848, 11942, 11984, 13648, 13696, 23884, 23968, 27296, 47768, 47936, 54592, 91271, 95536, 95872, 109184, 182542, 191072, 365084, 382144, 638897, 730168, 764288, 1277794, 1460336, 2555588, 2920672, 5111176, 5841344, 10222352, 11682688, 20444704, 40889408, 81778816]

約数ペア:

[(1, 81778816), (2, 40889408), (4, 20444704), (7, 11682688), (8, 10222352), (14, 5841344), (16, 5111176), (28, 2920672), (32, 2555588), (56, 1460336), (64, 1277794), (107, 764288), (112, 730168), (128, 638897), (214, 382144), (224, 365084), (428, 191072), (448, 182542), (749, 109184), (853, 95872), (856, 95536), (896, 91271), (1498, 54592), (1706, 47936), (1712, 47768), (2996, 27296), (3412, 23968), (3424, 23884), (5971, 13696), (5992, 13648), (6824, 11984), (6848, 11942)]