20728045402

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{523}}^1\times {\mathrm{4943}}^1$

素因数の和:5698

約数の個数: 32

約数和(自身を含む): 32953144320

約数和(自身を除く): 12225098918

約数列:

[1, 2, 19, 38, 211, 422, 523, 1046, 4009, 4943, 8018, 9886, 9937, 19874, 93917, 110353, 187834, 220706, 1042973, 2085946, 2096707, 2585189, 4193414, 5170378, 19816487, 39632974, 49118591, 98237182, 545474879, 1090949758, 10364022701, 20728045402]

約数ペア:

[(1, 20728045402), (2, 10364022701), (19, 1090949758), (38, 545474879), (211, 98237182), (422, 49118591), (523, 39632974), (1046, 19816487), (4009, 5170378), (4943, 4193414), (8018, 2585189), (9886, 2096707), (9937, 2085946), (19874, 1042973), (93917, 220706), (110353, 187834)]