99921880

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{12553}}^1$

素因数の和:12763

約数の個数: 32

約数和(自身を含む): 225972000

約数和(自身を除く): 126050120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 12553, 25106, 50212, 62765, 100424, 125530, 251060, 502120, 2498047, 4996094, 9992188, 12490235, 19984376, 24980470, 49960940, 99921880]

約数ペア:

[(1, 99921880), (2, 49960940), (4, 24980470), (5, 19984376), (8, 12490235), (10, 9992188), (20, 4996094), (40, 2498047), (199, 502120), (398, 251060), (796, 125530), (995, 100424), (1592, 62765), (1990, 50212), (3980, 25106), (7960, 12553)]