245775257

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 311351040

約数和(自身を除く): 65575783

約数列:

[1, 7, 13, 53, 91, 131, 371, 389, 689, 917, 1703, 2723, 4823, 5057, 6943, 11921, 20617, 35399, 48601, 50959, 90259, 144319, 268021, 356713, 631813, 662467, 1876147, 2700827, 4637269, 18905789, 35110751, 245775257]

約数ペア:

[(1, 245775257), (7, 35110751), (13, 18905789), (53, 4637269), (91, 2700827), (131, 1876147), (371, 662467), (389, 631813), (689, 356713), (917, 268021), (1703, 144319), (2723, 90259), (4823, 50959), (5057, 48601), (6943, 35399), (11921, 20617)]