81532864

素因数分解:

$2^6\times 7^2\times {\mathrm{25999}}^1$

素因数の和:26025

約数の個数: 42

約数和(自身を含む): 188214000

約数和(自身を除く): 106681136

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 25999, 51998, 103996, 181993, 207992, 363986, 415984, 727972, 831968, 1273951, 1455944, 1663936, 2547902, 2911888, 5095804, 5823776, 10191608, 11647552, 20383216, 40766432, 81532864]

約数ペア:

[(1, 81532864), (2, 40766432), (4, 20383216), (7, 11647552), (8, 10191608), (14, 5823776), (16, 5095804), (28, 2911888), (32, 2547902), (49, 1663936), (56, 1455944), (64, 1273951), (98, 831968), (112, 727972), (196, 415984), (224, 363986), (392, 207992), (448, 181993), (784, 103996), (1568, 51998), (3136, 25999)]