80644016

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{136223}}^1$

素因数の和:136268

約数の個数: 20

約数和(自身を含む): 160471872

約数和(自身を除く): 79827856

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 136223, 272446, 544892, 1089784, 2179568, 5040251, 10080502, 20161004, 40322008, 80644016]

約数ペア:

[(1, 80644016), (2, 40322008), (4, 20161004), (8, 10080502), (16, 5040251), (37, 2179568), (74, 1089784), (148, 544892), (296, 272446), (592, 136223)]