213852020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{110233}}^1$

素因数の和:110339

約数の個数: 24

約数和(自身を含む): 453723144

約数和(自身を除く): 239871124

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 110233, 220466, 440932, 551165, 1102330, 2204660, 10692601, 21385202, 42770404, 53463005, 106926010, 213852020]

約数ペア:

[(1, 213852020), (2, 106926010), (4, 53463005), (5, 42770404), (10, 21385202), (20, 10692601), (97, 2204660), (194, 1102330), (388, 551165), (485, 440932), (970, 220466), (1940, 110233)]