20774705

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 29666304

約数和(自身を除く): 8891599

約数列:

[1, 5, 7, 35, 47, 73, 173, 235, 329, 365, 511, 865, 1211, 1645, 2555, 3431, 6055, 8131, 12629, 17155, 24017, 40655, 56917, 63145, 88403, 120085, 284585, 442015, 593563, 2967815, 4154941, 20774705]

約数ペア:

[(1, 20774705), (5, 4154941), (7, 2967815), (35, 593563), (47, 442015), (73, 284585), (173, 120085), (235, 88403), (329, 63145), (365, 56917), (511, 40655), (865, 24017), (1211, 17155), (1645, 12629), (2555, 8131), (3431, 6055)]