291260380

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{73181}}^1$

素因数の和:73389

約数の個数: 24

約数和(自身を含む): 614728800

約数和(自身を除く): 323468420

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 73181, 146362, 292724, 365905, 731810, 1463620, 14563019, 29126038, 58252076, 72815095, 145630190, 291260380]

約数ペア:

[(1, 291260380), (2, 145630190), (4, 72815095), (5, 58252076), (10, 29126038), (20, 14563019), (199, 1463620), (398, 731810), (796, 365905), (995, 292724), (1990, 146362), (3980, 73181)]