12780940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37591}}^1$

素因数の和:37617

約数の個数: 24

約数和(自身を含む): 28419552

約数和(自身を除く): 15638612

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 37591, 75182, 150364, 187955, 375910, 639047, 751820, 1278094, 2556188, 3195235, 6390470, 12780940]

約数ペア:

[(1, 12780940), (2, 6390470), (4, 3195235), (5, 2556188), (10, 1278094), (17, 751820), (20, 639047), (34, 375910), (68, 187955), (85, 150364), (170, 75182), (340, 37591)]