81643005

素因数分解:

$3^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{977}}^1$

素因数の和:1610

約数の個数: 32

約数和(自身を含む): 145526400

約数和(自身を除く): 63883395

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 619, 977, 1857, 2931, 3095, 4885, 5571, 8793, 9285, 14655, 16713, 26379, 27855, 43965, 83565, 131895, 604763, 1814289, 3023815, 5442867, 9071445, 16328601, 27214335, 81643005]

約数ペア:

[(1, 81643005), (3, 27214335), (5, 16328601), (9, 9071445), (15, 5442867), (27, 3023815), (45, 1814289), (135, 604763), (619, 131895), (977, 83565), (1857, 43965), (2931, 27855), (3095, 26379), (4885, 16713), (5571, 14655), (8793, 9285)]