9999860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38461}}^1$

素因数の和:38483

約数の個数: 24

約数和(自身を含む): 22615656

約数和(自身を除く): 12615796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 38461, 76922, 153844, 192305, 384610, 499993, 769220, 999986, 1999972, 2499965, 4999930, 9999860]

約数ペア:

[(1, 9999860), (2, 4999930), (4, 2499965), (5, 1999972), (10, 999986), (13, 769220), (20, 499993), (26, 384610), (52, 192305), (65, 153844), (130, 76922), (260, 38461)]