81340168

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{111731}}^1$

素因数の和:111757

約数の個数: 32

約数和(自身を含む): 187709760

約数和(自身を除く): 106369592

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 111731, 223462, 446924, 782117, 893848, 1452503, 1564234, 2905006, 3128468, 5810012, 6256936, 10167521, 11620024, 20335042, 40670084, 81340168]

約数ペア:

[(1, 81340168), (2, 40670084), (4, 20335042), (7, 11620024), (8, 10167521), (13, 6256936), (14, 5810012), (26, 3128468), (28, 2905006), (52, 1564234), (56, 1452503), (91, 893848), (104, 782117), (182, 446924), (364, 223462), (728, 111731)]