42198020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51461}}^1$

素因数の和:51511

約数の個数: 24

約数和(自身を含む): 90778968

約数和(自身を除く): 48580948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 51461, 102922, 205844, 257305, 514610, 1029220, 2109901, 4219802, 8439604, 10549505, 21099010, 42198020]

約数ペア:

[(1, 42198020), (2, 21099010), (4, 10549505), (5, 8439604), (10, 4219802), (20, 2109901), (41, 1029220), (82, 514610), (164, 257305), (205, 205844), (410, 102922), (820, 51461)]