18762920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42643}}^1$

素因数の和:42665

約数の個数: 32

約数和(自身を含む): 46055520

約数和(自身を除く): 27292600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42643, 85286, 170572, 213215, 341144, 426430, 469073, 852860, 938146, 1705720, 1876292, 2345365, 3752584, 4690730, 9381460, 18762920]

約数ペア:

[(1, 18762920), (2, 9381460), (4, 4690730), (5, 3752584), (8, 2345365), (10, 1876292), (11, 1705720), (20, 938146), (22, 852860), (40, 469073), (44, 426430), (55, 341144), (88, 213215), (110, 170572), (220, 85286), (440, 42643)]