201312380

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{50581}}^1$

素因数の和:50789

約数の個数: 24

約数和(自身を含む): 424888800

約数和(自身を除く): 223576420

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 50581, 101162, 202324, 252905, 505810, 1011620, 10065619, 20131238, 40262476, 50328095, 100656190, 201312380]

約数ペア:

[(1, 201312380), (2, 100656190), (4, 50328095), (5, 40262476), (10, 20131238), (20, 10065619), (199, 1011620), (398, 505810), (796, 252905), (995, 202324), (1990, 101162), (3980, 50581)]