12787720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29063}}^1$

素因数の和:29085

約数の個数: 32

約数和(自身を含む): 31389120

約数和(自身を除く): 18601400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 29063, 58126, 116252, 145315, 232504, 290630, 319693, 581260, 639386, 1162520, 1278772, 1598465, 2557544, 3196930, 6393860, 12787720]

約数ペア:

[(1, 12787720), (2, 6393860), (4, 3196930), (5, 2557544), (8, 1598465), (10, 1278772), (11, 1162520), (20, 639386), (22, 581260), (40, 319693), (44, 290630), (55, 232504), (88, 145315), (110, 116252), (220, 58126), (440, 29063)]