20742064

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4517}}^1$

素因数の和:4573

約数の個数: 40

約数和(自身を含む): 47059488

約数和(自身を除く): 26317424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4517, 4592, 9034, 18068, 31619, 36136, 63238, 72272, 126476, 185197, 252952, 370394, 505904, 740788, 1296379, 1481576, 2592758, 2963152, 5185516, 10371032, 20742064]

約数ペア:

[(1, 20742064), (2, 10371032), (4, 5185516), (7, 2963152), (8, 2592758), (14, 1481576), (16, 1296379), (28, 740788), (41, 505904), (56, 370394), (82, 252952), (112, 185197), (164, 126476), (287, 72272), (328, 63238), (574, 36136), (656, 31619), (1148, 18068), (2296, 9034), (4517, 4592)]