8281840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:686

約数の個数: 80

約数和(自身を含む): 22998528

約数和(自身を除く): 14716688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 643, 644, 805, 920, 1286, 1288, 1610, 1840, 2572, 2576, 3215, 3220, 4501, 5144, 6430, 6440, 9002, 10288, 12860, 12880, 14789, 18004, 22505, 25720, 29578, 36008, 45010, 51440, 59156, 72016, 73945, 90020, 103523, 118312, 147890, 180040, 207046, 236624, 295780, 360080, 414092, 517615, 591560, 828184, 1035230, 1183120, 1656368, 2070460, 4140920, 8281840]

約数ペア:

[(1, 8281840), (2, 4140920), (4, 2070460), (5, 1656368), (7, 1183120), (8, 1035230), (10, 828184), (14, 591560), (16, 517615), (20, 414092), (23, 360080), (28, 295780), (35, 236624), (40, 207046), (46, 180040), (56, 147890), (70, 118312), (80, 103523), (92, 90020), (112, 73945), (115, 72016), (140, 59156), (161, 51440), (184, 45010), (230, 36008), (280, 29578), (322, 25720), (368, 22505), (460, 18004), (560, 14789), (643, 12880), (644, 12860), (805, 10288), (920, 9002), (1286, 6440), (1288, 6430), (1610, 5144), (1840, 4501), (2572, 3220), (2576, 3215)]