28686710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{220667}}^1$

素因数の和:220687

約数の個数: 16

約数和(自身を含む): 55608336

約数和(自身を除く): 26921626

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 220667, 441334, 1103335, 2206670, 2868671, 5737342, 14343355, 28686710]

約数ペア:

[(1, 28686710), (2, 14343355), (5, 5737342), (10, 2868671), (13, 2206670), (26, 1103335), (65, 441334), (130, 220667)]