81530864

素因数分解:

$2^4\times {\mathrm{541}}^1\times {\mathrm{9419}}^1$

素因数の和:9968

約数の個数: 20

約数和(自身を含む): 158274840

約数和(自身を除く): 76743976

約数列:

[1, 2, 4, 8, 16, 541, 1082, 2164, 4328, 8656, 9419, 18838, 37676, 75352, 150704, 5095679, 10191358, 20382716, 40765432, 81530864]

約数ペア:

[(1, 81530864), (2, 40765432), (4, 20382716), (8, 10191358), (16, 5095679), (541, 150704), (1082, 75352), (2164, 37676), (4328, 18838), (8656, 9419)]