39144620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1979}}^1$

素因数の和:2054

約数の個数: 48

約数和(自身を含む): 87816960

約数和(自身を除く): 48672340

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 430, 460, 860, 989, 1978, 1979, 3956, 3958, 4945, 7916, 9890, 9895, 19780, 19790, 39580, 45517, 85097, 91034, 170194, 182068, 227585, 340388, 425485, 455170, 850970, 910340, 1701940, 1957231, 3914462, 7828924, 9786155, 19572310, 39144620]

約数ペア:

[(1, 39144620), (2, 19572310), (4, 9786155), (5, 7828924), (10, 3914462), (20, 1957231), (23, 1701940), (43, 910340), (46, 850970), (86, 455170), (92, 425485), (115, 340388), (172, 227585), (215, 182068), (230, 170194), (430, 91034), (460, 85097), (860, 45517), (989, 39580), (1978, 19790), (1979, 19780), (3956, 9895), (3958, 9890), (4945, 7916)]