123966440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{238397}}^1$

素因数の和:238421

約数の個数: 32

約数和(自身を含む): 300381480

約数和(自身を除く): 176415040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 238397, 476794, 953588, 1191985, 1907176, 2383970, 3099161, 4767940, 6198322, 9535880, 12396644, 15495805, 24793288, 30991610, 61983220, 123966440]

約数ペア:

[(1, 123966440), (2, 61983220), (4, 30991610), (5, 24793288), (8, 15495805), (10, 12396644), (13, 9535880), (20, 6198322), (26, 4767940), (40, 3099161), (52, 2383970), (65, 1907176), (104, 1191985), (130, 953588), (260, 476794), (520, 238397)]