18132920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34871}}^1$

素因数の和:34895

約数の個数: 32

約数和(自身を含む): 43938720

約数和(自身を除く): 25805800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 34871, 69742, 139484, 174355, 278968, 348710, 453323, 697420, 906646, 1394840, 1813292, 2266615, 3626584, 4533230, 9066460, 18132920]

約数ペア:

[(1, 18132920), (2, 9066460), (4, 4533230), (5, 3626584), (8, 2266615), (10, 1813292), (13, 1394840), (20, 906646), (26, 697420), (40, 453323), (52, 348710), (65, 278968), (104, 174355), (130, 139484), (260, 69742), (520, 34871)]