18903560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36353}}^1$

素因数の和:36377

約数の個数: 32

約数和(自身を含む): 45806040

約数和(自身を除く): 26902480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36353, 72706, 145412, 181765, 290824, 363530, 472589, 727060, 945178, 1454120, 1890356, 2362945, 3780712, 4725890, 9451780, 18903560]

約数ペア:

[(1, 18903560), (2, 9451780), (4, 4725890), (5, 3780712), (8, 2362945), (10, 1890356), (13, 1454120), (20, 945178), (26, 727060), (40, 472589), (52, 363530), (65, 290824), (104, 181765), (130, 145412), (260, 72706), (520, 36353)]