18309040

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2897}}^1$

素因数の和:2989

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 24813200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2897, 3160, 5794, 6320, 11588, 14485, 23176, 28970, 46352, 57940, 115880, 228863, 231760, 457726, 915452, 1144315, 1830904, 2288630, 3661808, 4577260, 9154520, 18309040]

約数ペア:

[(1, 18309040), (2, 9154520), (4, 4577260), (5, 3661808), (8, 2288630), (10, 1830904), (16, 1144315), (20, 915452), (40, 457726), (79, 231760), (80, 228863), (158, 115880), (316, 57940), (395, 46352), (632, 28970), (790, 23176), (1264, 14485), (1580, 11588), (2897, 6320), (3160, 5794)]