81301750

素因数分解:

$2^1\times 5^3\times {\mathrm{313}}^1\times {\mathrm{1039}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 152830080

約数和(自身を除く): 71528330

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 313, 626, 1039, 1565, 2078, 3130, 5195, 7825, 10390, 15650, 25975, 39125, 51950, 78250, 129875, 259750, 325207, 650414, 1626035, 3252070, 8130175, 16260350, 40650875, 81301750]

約数ペア:

[(1, 81301750), (2, 40650875), (5, 16260350), (10, 8130175), (25, 3252070), (50, 1626035), (125, 650414), (250, 325207), (313, 259750), (626, 129875), (1039, 78250), (1565, 51950), (2078, 39125), (3130, 25975), (5195, 15650), (7825, 10390)]