81892485

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2099}}^1$

素因数の和:2147

約数の個数: 48

約数和(自身を含む): 154728000

約数和(自身を除く): 72835515

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 289, 459, 765, 867, 1445, 2099, 2295, 2601, 4335, 6297, 7803, 10495, 13005, 18891, 31485, 35683, 39015, 56673, 94455, 107049, 178415, 283365, 321147, 535245, 606611, 963441, 1605735, 1819833, 3033055, 4817205, 5459499, 9099165, 16378497, 27297495, 81892485]

約数ペア:

[(1, 81892485), (3, 27297495), (5, 16378497), (9, 9099165), (15, 5459499), (17, 4817205), (27, 3033055), (45, 1819833), (51, 1605735), (85, 963441), (135, 606611), (153, 535245), (255, 321147), (289, 283365), (459, 178415), (765, 107049), (867, 94455), (1445, 56673), (2099, 39015), (2295, 35683), (2601, 31485), (4335, 18891), (6297, 13005), (7803, 10495)]