81271490

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{74561}}^1$

素因数の和:74677

約数の個数: 16

約数和(自身を含む): 147632760

約数和(自身を除く): 66361270

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 74561, 149122, 372805, 745610, 8127149, 16254298, 40635745, 81271490]

約数ペア:

[(1, 81271490), (2, 40635745), (5, 16254298), (10, 8127149), (109, 745610), (218, 372805), (545, 149122), (1090, 74561)]