1800040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4091}}^1$

素因数の和:4113

約数の個数: 32

約数和(自身を含む): 4419360

約数和(自身を除く): 2619320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 4091, 8182, 16364, 20455, 32728, 40910, 45001, 81820, 90002, 163640, 180004, 225005, 360008, 450010, 900020, 1800040]

約数ペア:

[(1, 1800040), (2, 900020), (4, 450010), (5, 360008), (8, 225005), (10, 180004), (11, 163640), (20, 90002), (22, 81820), (40, 45001), (44, 40910), (55, 32728), (88, 20455), (110, 16364), (220, 8182), (440, 4091)]