12890590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 24758784

約数和(自身を除く): 11868194

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 191, 382, 397, 794, 955, 1910, 1985, 3247, 3970, 6494, 6749, 13498, 16235, 32470, 33745, 67490, 75827, 151654, 379135, 758270, 1289059, 2578118, 6445295, 12890590]

約数ペア:

[(1, 12890590), (2, 6445295), (5, 2578118), (10, 1289059), (17, 758270), (34, 379135), (85, 151654), (170, 75827), (191, 67490), (382, 33745), (397, 32470), (794, 16235), (955, 13498), (1910, 6749), (1985, 6494), (3247, 3970)]