138065720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{265511}}^1$

素因数の和:265535

約数の個数: 32

約数和(自身を含む): 334545120

約数和(自身を除く): 196479400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 265511, 531022, 1062044, 1327555, 2124088, 2655110, 3451643, 5310220, 6903286, 10620440, 13806572, 17258215, 27613144, 34516430, 69032860, 138065720]

約数ペア:

[(1, 138065720), (2, 69032860), (4, 34516430), (5, 27613144), (8, 17258215), (10, 13806572), (13, 10620440), (20, 6903286), (26, 5310220), (40, 3451643), (52, 2655110), (65, 2124088), (104, 1327555), (130, 1062044), (260, 531022), (520, 265511)]