402159745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199583}}^1$

素因数の和:199632

約数の個数: 16

約数和(自身を含む): 536481792

約数和(自身を除く): 134322047

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 199583, 997915, 2594579, 6187073, 12972895, 30935365, 80431949, 402159745]

約数ペア:

[(1, 402159745), (5, 80431949), (13, 30935365), (31, 12972895), (65, 6187073), (155, 2594579), (403, 997915), (2015, 199583)]