1808278840

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{45343}}^1$

素因数の和:46351

約数の個数: 32

約数和(自身を含む): 4072798080

約数和(自身を除く): 2264519240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 3988, 4985, 7976, 9970, 19940, 39880, 45343, 90686, 181372, 226715, 362744, 453430, 906860, 1813720, 45206971, 90413942, 180827884, 226034855, 361655768, 452069710, 904139420, 1808278840]

約数ペア:

[(1, 1808278840), (2, 904139420), (4, 452069710), (5, 361655768), (8, 226034855), (10, 180827884), (20, 90413942), (40, 45206971), (997, 1813720), (1994, 906860), (3988, 453430), (4985, 362744), (7976, 226715), (9970, 181372), (19940, 90686), (39880, 45343)]