18311660

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9439}}^1$

素因数の和:9545

約数の個数: 24

約数和(自身を含む): 38855040

約数和(自身を除く): 20543380

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 9439, 18878, 37756, 47195, 94390, 188780, 915583, 1831166, 3662332, 4577915, 9155830, 18311660]

約数ペア:

[(1, 18311660), (2, 9155830), (4, 4577915), (5, 3662332), (10, 1831166), (20, 915583), (97, 188780), (194, 94390), (388, 47195), (485, 37756), (970, 18878), (1940, 9439)]