8487440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8161}}^1$

素因数の和:8187

約数の個数: 40

約数和(自身を含む): 21253848

約数和(自身を除く): 12766408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 8161, 16322, 32644, 40805, 65288, 81610, 106093, 130576, 163220, 212186, 326440, 424372, 530465, 652880, 848744, 1060930, 1697488, 2121860, 4243720, 8487440]

約数ペア:

[(1, 8487440), (2, 4243720), (4, 2121860), (5, 1697488), (8, 1060930), (10, 848744), (13, 652880), (16, 530465), (20, 424372), (26, 326440), (40, 212186), (52, 163220), (65, 130576), (80, 106093), (104, 81610), (130, 65288), (208, 40805), (260, 32644), (520, 16322), (1040, 8161)]