28763930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221261}}^1$

素因数の和:221281

約数の個数: 16

約数和(自身を含む): 55758024

約数和(自身を除く): 26994094

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 221261, 442522, 1106305, 2212610, 2876393, 5752786, 14381965, 28763930]

約数ペア:

[(1, 28763930), (2, 14381965), (5, 5752786), (10, 2876393), (13, 2212610), (26, 1106305), (65, 442522), (130, 221261)]