12215720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{27763}}^1$

素因数の和:27785

約数の個数: 32

約数和(自身を含む): 29985120

約数和(自身を除く): 17769400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 27763, 55526, 111052, 138815, 222104, 277630, 305393, 555260, 610786, 1110520, 1221572, 1526965, 2443144, 3053930, 6107860, 12215720]

約数ペア:

[(1, 12215720), (2, 6107860), (4, 3053930), (5, 2443144), (8, 1526965), (10, 1221572), (11, 1110520), (20, 610786), (22, 555260), (40, 305393), (44, 277630), (55, 222104), (88, 138815), (110, 111052), (220, 55526), (440, 27763)]