39499420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18119}}^1$

素因数の和:18237

約数の個数: 24

約数和(自身を含む): 83714400

約数和(自身を除く): 44214980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 18119, 36238, 72476, 90595, 181190, 362380, 1974971, 3949942, 7899884, 9874855, 19749710, 39499420]

約数ペア:

[(1, 39499420), (2, 19749710), (4, 9874855), (5, 7899884), (10, 3949942), (20, 1974971), (109, 362380), (218, 181190), (436, 90595), (545, 72476), (1090, 36238), (2180, 18119)]