8004040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18191}}^1$

素因数の和:18213

約数の個数: 32

約数和(自身を含む): 19647360

約数和(自身を除く): 11643320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 18191, 36382, 72764, 90955, 145528, 181910, 200101, 363820, 400202, 727640, 800404, 1000505, 1600808, 2001010, 4002020, 8004040]

約数ペア:

[(1, 8004040), (2, 4002020), (4, 2001010), (5, 1600808), (8, 1000505), (10, 800404), (11, 727640), (20, 400202), (22, 363820), (40, 200101), (44, 181910), (55, 145528), (88, 90955), (110, 72764), (220, 36382), (440, 18191)]