28194885

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1619}}^1$

素因数の和:1679

約数の個数: 40

約数和(自身を含む): 51749280

約数和(自身を除く): 23554395

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1619, 1935, 3483, 4857, 5805, 8095, 14571, 17415, 24285, 43713, 69617, 72855, 131139, 208851, 218565, 348085, 626553, 655695, 1044255, 1879659, 3132765, 5638977, 9398295, 28194885]

約数ペア:

[(1, 28194885), (3, 9398295), (5, 5638977), (9, 3132765), (15, 1879659), (27, 1044255), (43, 655695), (45, 626553), (81, 348085), (129, 218565), (135, 208851), (215, 131139), (387, 72855), (405, 69617), (645, 43713), (1161, 24285), (1619, 17415), (1935, 14571), (3483, 8095), (4857, 5805)]