2017886680

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{119827}}^1$

素因数の和:120259

約数の個数: 32

約数和(自身を含む): 4551067440

約数和(自身を除く): 2533180760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 119827, 239654, 479308, 599135, 958616, 1198270, 2396540, 4793080, 50447167, 100894334, 201788668, 252235835, 403577336, 504471670, 1008943340, 2017886680]

約数ペア:

[(1, 2017886680), (2, 1008943340), (4, 504471670), (5, 403577336), (8, 252235835), (10, 201788668), (20, 100894334), (40, 50447167), (421, 4793080), (842, 2396540), (1684, 1198270), (2105, 958616), (3368, 599135), (4210, 479308), (8420, 239654), (16840, 119827)]