128059760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51637}}^1$

素因数の和:51681

約数の個数: 40

約数和(自身を含む): 307349376

約数和(自身を除く): 179289616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 51637, 103274, 206548, 258185, 413096, 516370, 826192, 1032740, 1600747, 2065480, 3201494, 4130960, 6402988, 8003735, 12805976, 16007470, 25611952, 32014940, 64029880, 128059760]

約数ペア:

[(1, 128059760), (2, 64029880), (4, 32014940), (5, 25611952), (8, 16007470), (10, 12805976), (16, 8003735), (20, 6402988), (31, 4130960), (40, 3201494), (62, 2065480), (80, 1600747), (124, 1032740), (155, 826192), (248, 516370), (310, 413096), (496, 258185), (620, 206548), (1240, 103274), (2480, 51637)]