18683480

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2371}}^1$

素因数の和:2579

約数の個数: 32

約数和(自身を含む): 42269040

約数和(自身を除く): 23585560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2371, 3940, 4742, 7880, 9484, 11855, 18968, 23710, 47420, 94840, 467087, 934174, 1868348, 2335435, 3736696, 4670870, 9341740, 18683480]

約数ペア:

[(1, 18683480), (2, 9341740), (4, 4670870), (5, 3736696), (8, 2335435), (10, 1868348), (20, 934174), (40, 467087), (197, 94840), (394, 47420), (788, 23710), (985, 18968), (1576, 11855), (1970, 9484), (2371, 7880), (3940, 4742)]