281305408

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1997}}^1$

素因数の和:2111

約数の個数: 56

約数和(自身を含む): 584630784

約数和(自身を除く): 303325376

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 71, 124, 142, 248, 284, 496, 568, 992, 1136, 1984, 1997, 2201, 2272, 3994, 4402, 4544, 7988, 8804, 15976, 17608, 31952, 35216, 61907, 63904, 70432, 123814, 127808, 140864, 141787, 247628, 283574, 495256, 567148, 990512, 1134296, 1981024, 2268592, 3962048, 4395397, 4537184, 8790794, 9074368, 17581588, 35163176, 70326352, 140652704, 281305408]

約数ペア:

[(1, 281305408), (2, 140652704), (4, 70326352), (8, 35163176), (16, 17581588), (31, 9074368), (32, 8790794), (62, 4537184), (64, 4395397), (71, 3962048), (124, 2268592), (142, 1981024), (248, 1134296), (284, 990512), (496, 567148), (568, 495256), (992, 283574), (1136, 247628), (1984, 141787), (1997, 140864), (2201, 127808), (2272, 123814), (3994, 70432), (4402, 63904), (4544, 61907), (7988, 35216), (8804, 31952), (15976, 17608)]