1285106816

素因数分解:

$2^7\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20201}}^1$

素因数の和:20293

約数の個数: 64

約数和(自身を含む): 2967269760

約数和(自身を除く): 1682162944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 284, 448, 497, 568, 896, 994, 1136, 1988, 2272, 3976, 4544, 7952, 9088, 15904, 20201, 31808, 40402, 63616, 80804, 141407, 161608, 282814, 323216, 565628, 646432, 1131256, 1292864, 1434271, 2262512, 2585728, 2868542, 4525024, 5737084, 9050048, 10039897, 11474168, 18100096, 20079794, 22948336, 40159588, 45896672, 80319176, 91793344, 160638352, 183586688, 321276704, 642553408, 1285106816]

約数ペア:

[(1, 1285106816), (2, 642553408), (4, 321276704), (7, 183586688), (8, 160638352), (14, 91793344), (16, 80319176), (28, 45896672), (32, 40159588), (56, 22948336), (64, 20079794), (71, 18100096), (112, 11474168), (128, 10039897), (142, 9050048), (224, 5737084), (284, 4525024), (448, 2868542), (497, 2585728), (568, 2262512), (896, 1434271), (994, 1292864), (1136, 1131256), (1988, 646432), (2272, 565628), (3976, 323216), (4544, 282814), (7952, 161608), (9088, 141407), (15904, 80804), (20201, 63616), (31808, 40402)]