77920040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{177091}}^1$

素因数の和:177113

約数の個数: 32

約数和(自身を含む): 191259360

約数和(自身を除く): 113339320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 177091, 354182, 708364, 885455, 1416728, 1770910, 1948001, 3541820, 3896002, 7083640, 7792004, 9740005, 15584008, 19480010, 38960020, 77920040]

約数ペア:

[(1, 77920040), (2, 38960020), (4, 19480010), (5, 15584008), (8, 9740005), (10, 7792004), (11, 7083640), (20, 3896002), (22, 3541820), (40, 1948001), (44, 1770910), (55, 1416728), (88, 885455), (110, 708364), (220, 354182), (440, 177091)]