12120195

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 21807360

約数和(自身を除く): 9687165

約数列:

[1, 3, 5, 15, 19, 23, 43, 57, 69, 95, 115, 129, 215, 285, 345, 437, 645, 817, 989, 1311, 1849, 2185, 2451, 2967, 4085, 4945, 5547, 6555, 9245, 12255, 14835, 18791, 27735, 35131, 42527, 56373, 93955, 105393, 127581, 175655, 212635, 281865, 526965, 637905, 808013, 2424039, 4040065, 12120195]

約数ペア:

[(1, 12120195), (3, 4040065), (5, 2424039), (15, 808013), (19, 637905), (23, 526965), (43, 281865), (57, 212635), (69, 175655), (95, 127581), (115, 105393), (129, 93955), (215, 56373), (285, 42527), (345, 35131), (437, 27735), (645, 18791), (817, 14835), (989, 12255), (1311, 9245), (1849, 6555), (2185, 5547), (2451, 4945), (2967, 4085)]