72857020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{10091}}^1$

素因数の和:10138

約数の個数: 36

約数和(自身を含む): 161492184

約数和(自身を除く): 88635164

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 10091, 20182, 40364, 50455, 100910, 191729, 201820, 383458, 766916, 958645, 1917290, 3642851, 3834580, 7285702, 14571404, 18214255, 36428510, 72857020]

約数ペア:

[(1, 72857020), (2, 36428510), (4, 18214255), (5, 14571404), (10, 7285702), (19, 3834580), (20, 3642851), (38, 1917290), (76, 958645), (95, 766916), (190, 383458), (361, 201820), (380, 191729), (722, 100910), (1444, 50455), (1805, 40364), (3610, 20182), (7220, 10091)]