31986890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1249}}^1$

素因数の和:1466

約数の個数: 32

約数和(自身を含む): 62370000

約数和(自身を除く): 30383110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 985, 1249, 1970, 2498, 2561, 5122, 6245, 12490, 12805, 16237, 25610, 32474, 81185, 162370, 246053, 492106, 1230265, 2460530, 3198689, 6397378, 15993445, 31986890]

約数ペア:

[(1, 31986890), (2, 15993445), (5, 6397378), (10, 3198689), (13, 2460530), (26, 1230265), (65, 492106), (130, 246053), (197, 162370), (394, 81185), (985, 32474), (1249, 25610), (1970, 16237), (2498, 12805), (2561, 12490), (5122, 6245)]