18100360

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2297}}^1$

素因数の和:2505

約数の個数: 32

約数和(自身を含む): 40950360

約数和(自身を除く): 22850000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2297, 3940, 4594, 7880, 9188, 11485, 18376, 22970, 45940, 91880, 452509, 905018, 1810036, 2262545, 3620072, 4525090, 9050180, 18100360]

約数ペア:

[(1, 18100360), (2, 9050180), (4, 4525090), (5, 3620072), (8, 2262545), (10, 1810036), (20, 905018), (40, 452509), (197, 91880), (394, 45940), (788, 22970), (985, 18376), (1576, 11485), (1970, 9188), (2297, 7880), (3940, 4594)]