161850680

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{20333}}^1$

素因数の和:20543

約数の個数: 32

約数和(自身を含む): 366012000

約数和(自身を除く): 204161320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 20333, 40666, 81332, 101665, 162664, 203330, 406660, 813320, 4046267, 8092534, 16185068, 20231335, 32370136, 40462670, 80925340, 161850680]

約数ペア:

[(1, 161850680), (2, 80925340), (4, 40462670), (5, 32370136), (8, 20231335), (10, 16185068), (20, 8092534), (40, 4046267), (199, 813320), (398, 406660), (796, 203330), (995, 162664), (1592, 101665), (1990, 81332), (3980, 40666), (7960, 20333)]