405917140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1068203}}^1$

素因数の和:1068231

約数の個数: 24

約数和(自身を含む): 897291360

約数和(自身を除く): 491374220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1068203, 2136406, 4272812, 5341015, 10682030, 20295857, 21364060, 40591714, 81183428, 101479285, 202958570, 405917140]

約数ペア:

[(1, 405917140), (2, 202958570), (4, 101479285), (5, 81183428), (10, 40591714), (19, 21364060), (20, 20295857), (38, 10682030), (76, 5341015), (95, 4272812), (190, 2136406), (380, 1068203)]