81013972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{727}}^1\times {\mathrm{2143}}^1$

素因数の和:2887

約数の個数: 24

約数和(自身を含む): 152961536

約数和(自身を除く): 71947564

約数列:

[1, 2, 4, 13, 26, 52, 727, 1454, 2143, 2908, 4286, 8572, 9451, 18902, 27859, 37804, 55718, 111436, 1557961, 3115922, 6231844, 20253493, 40506986, 81013972]

約数ペア:

[(1, 81013972), (2, 40506986), (4, 20253493), (13, 6231844), (26, 3115922), (52, 1557961), (727, 111436), (1454, 55718), (2143, 37804), (2908, 27859), (4286, 18902), (8572, 9451)]