1279231720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2460061}}^1$

素因数の和:2460085

約数の個数: 32

約数和(自身を含む): 3099678120

約数和(自身を除く): 1820446400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2460061, 4920122, 9840244, 12300305, 19680488, 24600610, 31980793, 49201220, 63961586, 98402440, 127923172, 159903965, 255846344, 319807930, 639615860, 1279231720]

約数ペア:

[(1, 1279231720), (2, 639615860), (4, 319807930), (5, 255846344), (8, 159903965), (10, 127923172), (13, 98402440), (20, 63961586), (26, 49201220), (40, 31980793), (52, 24600610), (65, 19680488), (104, 12300305), (130, 9840244), (260, 4920122), (520, 2460061)]