40656285

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21011}}^1$

素因数の和:21065

約数の個数: 24

約数和(自身を含む): 72113184

約数和(自身を除く): 31456899

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 21011, 63033, 105055, 189099, 315165, 903473, 945495, 2710419, 4517365, 8131257, 13552095, 40656285]

約数ペア:

[(1, 40656285), (3, 13552095), (5, 8131257), (9, 4517365), (15, 2710419), (43, 945495), (45, 903473), (129, 315165), (215, 189099), (387, 105055), (645, 63033), (1935, 21011)]