70898020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{86461}}^1$

素因数の和:86511

約数の個数: 24

約数和(自身を含む): 152518968

約数和(自身を除く): 81620948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 86461, 172922, 345844, 432305, 864610, 1729220, 3544901, 7089802, 14179604, 17724505, 35449010, 70898020]

約数ペア:

[(1, 70898020), (2, 35449010), (4, 17724505), (5, 14179604), (10, 7089802), (20, 3544901), (41, 1729220), (82, 864610), (164, 432305), (205, 345844), (410, 172922), (820, 86461)]