197686760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{45341}}^1$

素因数の和:45461

約数の個数: 32

約数和(自身を含む): 448885800

約数和(自身を除く): 251199040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 45341, 90682, 181364, 226705, 362728, 453410, 906820, 1813640, 4942169, 9884338, 19768676, 24710845, 39537352, 49421690, 98843380, 197686760]

約数ペア:

[(1, 197686760), (2, 98843380), (4, 49421690), (5, 39537352), (8, 24710845), (10, 19768676), (20, 9884338), (40, 4942169), (109, 1813640), (218, 906820), (436, 453410), (545, 362728), (872, 226705), (1090, 181364), (2180, 90682), (4360, 45341)]