194139640

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{11261}}^1$

素因数の和:11703

約数の個数: 32

約数和(自身を含む): 437866560

約数和(自身を除く): 243726920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 8620, 11261, 17240, 22522, 45044, 56305, 90088, 112610, 225220, 450440, 4853491, 9706982, 19413964, 24267455, 38827928, 48534910, 97069820, 194139640]

約数ペア:

[(1, 194139640), (2, 97069820), (4, 48534910), (5, 38827928), (8, 24267455), (10, 19413964), (20, 9706982), (40, 4853491), (431, 450440), (862, 225220), (1724, 112610), (2155, 90088), (3448, 56305), (4310, 45044), (8620, 22522), (11261, 17240)]