1298291248

素因数分解:

$2^4\times {\mathrm{557}}^1\times {\mathrm{145679}}^1$

素因数の和:146244

約数の個数: 20

約数和(自身を含む): 2519972640

約数和(自身を除く): 1221681392

約数列:

[1, 2, 4, 8, 16, 557, 1114, 2228, 4456, 8912, 145679, 291358, 582716, 1165432, 2330864, 81143203, 162286406, 324572812, 649145624, 1298291248]

約数ペア:

[(1, 1298291248), (2, 649145624), (4, 324572812), (8, 162286406), (16, 81143203), (557, 2330864), (1114, 1165432), (2228, 582716), (4456, 291358), (8912, 145679)]