81252016

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{57059}}^1$

素因数の和:57156

約数の個数: 20

約数和(自身を含む): 159197400

約数和(自身を除く): 77945384

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 57059, 114118, 228236, 456472, 912944, 5078251, 10156502, 20313004, 40626008, 81252016]

約数ペア:

[(1, 81252016), (2, 40626008), (4, 20313004), (8, 10156502), (16, 5078251), (89, 912944), (178, 456472), (356, 228236), (712, 114118), (1424, 57059)]