289292020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{272917}}^1$

素因数の和:272979

約数の個数: 24

約数和(自身を含む): 618978024

約数和(自身を除く): 329686004

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 272917, 545834, 1091668, 1364585, 2729170, 5458340, 14464601, 28929202, 57858404, 72323005, 144646010, 289292020]

約数ペア:

[(1, 289292020), (2, 144646010), (4, 72323005), (5, 57858404), (10, 28929202), (20, 14464601), (53, 5458340), (106, 2729170), (212, 1364585), (265, 1091668), (530, 545834), (1060, 272917)]