81600880

素因数分解:

$2^4\times 5^1\times {\mathrm{1020011}}^1$

素因数の和:1020024

約数の個数: 20

約数和(自身を含む): 189722232

約数和(自身を除く): 108121352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1020011, 2040022, 4080044, 5100055, 8160088, 10200110, 16320176, 20400220, 40800440, 81600880]

約数ペア:

[(1, 81600880), (2, 40800440), (4, 20400220), (5, 16320176), (8, 10200110), (10, 8160088), (16, 5100055), (20, 4080044), (40, 2040022), (80, 1020011)]