66506960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{63949}}^1$

素因数の和:63975

約数の個数: 40

約数和(自身を含む): 166525800

約数和(自身を除く): 100018840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 63949, 127898, 255796, 319745, 511592, 639490, 831337, 1023184, 1278980, 1662674, 2557960, 3325348, 4156685, 5115920, 6650696, 8313370, 13301392, 16626740, 33253480, 66506960]

約数ペア:

[(1, 66506960), (2, 33253480), (4, 16626740), (5, 13301392), (8, 8313370), (10, 6650696), (13, 5115920), (16, 4156685), (20, 3325348), (26, 2557960), (40, 1662674), (52, 1278980), (65, 1023184), (80, 831337), (104, 639490), (130, 511592), (208, 319745), (260, 255796), (520, 127898), (1040, 63949)]