1809361720

素因数分解:

$2^3\times 5^1\times {\mathrm{45234043}}^1$

素因数の和:45234054

約数の個数: 16

約数和(自身を含む): 4071063960

約数和(自身を除く): 2261702240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 45234043, 90468086, 180936172, 226170215, 361872344, 452340430, 904680860, 1809361720]

約数ペア:

[(1, 1809361720), (2, 904680860), (4, 452340430), (5, 361872344), (8, 226170215), (10, 180936172), (20, 90468086), (40, 45234043)]