28398110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218447}}^1$

素因数の和:218467

約数の個数: 16

約数和(自身を含む): 55048896

約数和(自身を除く): 26650786

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 218447, 436894, 1092235, 2184470, 2839811, 5679622, 14199055, 28398110]

約数ペア:

[(1, 28398110), (2, 14199055), (5, 5679622), (10, 2839811), (13, 2184470), (26, 1092235), (65, 436894), (130, 218447)]