81563456

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{7541}}^1$

素因数の和:7579

約数の個数: 42

約数和(自身を含む): 175283622

約数和(自身を除く): 93720166

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 2704, 5408, 7541, 10816, 15082, 30164, 60328, 98033, 120656, 196066, 241312, 392132, 482624, 784264, 1274429, 1568528, 2548858, 3137056, 5097716, 6274112, 10195432, 20390864, 40781728, 81563456]

約数ペア:

[(1, 81563456), (2, 40781728), (4, 20390864), (8, 10195432), (13, 6274112), (16, 5097716), (26, 3137056), (32, 2548858), (52, 1568528), (64, 1274429), (104, 784264), (169, 482624), (208, 392132), (338, 241312), (416, 196066), (676, 120656), (832, 98033), (1352, 60328), (2704, 30164), (5408, 15082), (7541, 10816)]