193140520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{112291}}^1$

素因数の和:112345

約数の個数: 32

約数和(自身を含む): 444676320

約数和(自身を除く): 251535800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 112291, 224582, 449164, 561455, 898328, 1122910, 2245820, 4491640, 4828513, 9657026, 19314052, 24142565, 38628104, 48285130, 96570260, 193140520]

約数ペア:

[(1, 193140520), (2, 96570260), (4, 48285130), (5, 38628104), (8, 24142565), (10, 19314052), (20, 9657026), (40, 4828513), (43, 4491640), (86, 2245820), (172, 1122910), (215, 898328), (344, 561455), (430, 449164), (860, 224582), (1720, 112291)]