42140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1$

素因数の和:66

約数の個数: 36

約数和(自身を含む): 105336

約数和(自身を除く): 63196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 4214, 6020, 8428, 10535, 21070, 42140]

約数ペア:

[(1, 42140), (2, 21070), (4, 10535), (5, 8428), (7, 6020), (10, 4214), (14, 3010), (20, 2107), (28, 1505), (35, 1204), (43, 980), (49, 860), (70, 602), (86, 490), (98, 430), (140, 301), (172, 245), (196, 215)]