18179720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34961}}^1$

素因数の和:34985

約数の個数: 32

約数和(自身を含む): 44052120

約数和(自身を除く): 25872400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 34961, 69922, 139844, 174805, 279688, 349610, 454493, 699220, 908986, 1398440, 1817972, 2272465, 3635944, 4544930, 9089860, 18179720]

約数ペア:

[(1, 18179720), (2, 9089860), (4, 4544930), (5, 3635944), (8, 2272465), (10, 1817972), (13, 1398440), (20, 908986), (26, 699220), (40, 454493), (52, 349610), (65, 279688), (104, 174805), (130, 139844), (260, 69922), (520, 34961)]