256878874

素因数分解:

$2^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{22027}}^1$

素因数の和:22067

約数の個数: 32

約数和(自身を含む): 475804800

約数和(自身を除く): 218925926

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 343, 686, 833, 1666, 5831, 11662, 22027, 44054, 154189, 308378, 374459, 748918, 1079323, 2158646, 2621213, 5242426, 7555261, 15110522, 18348491, 36696982, 128439437, 256878874]

約数ペア:

[(1, 256878874), (2, 128439437), (7, 36696982), (14, 18348491), (17, 15110522), (34, 7555261), (49, 5242426), (98, 2621213), (119, 2158646), (238, 1079323), (343, 748918), (686, 374459), (833, 308378), (1666, 154189), (5831, 44054), (11662, 22027)]