19913640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{165947}}^1$

素因数の和:165961

約数の個数: 32

約数和(自身を含む): 59741280

約数和(自身を除く): 39827640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 165947, 331894, 497841, 663788, 829735, 995682, 1327576, 1659470, 1991364, 2489205, 3318940, 3982728, 4978410, 6637880, 9956820, 19913640]

約数ペア:

[(1, 19913640), (2, 9956820), (3, 6637880), (4, 4978410), (5, 3982728), (6, 3318940), (8, 2489205), (10, 1991364), (12, 1659470), (15, 1327576), (20, 995682), (24, 829735), (30, 663788), (40, 497841), (60, 331894), (120, 165947)]