209807780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{115279}}^1$

素因数の和:115308

約数の個数: 48

約数和(自身を含む): 542277120

約数和(自身を除く): 332469340

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 115279, 230558, 461116, 576395, 806953, 1152790, 1498627, 1613906, 2305580, 2997254, 3227812, 4034765, 5994508, 7493135, 8069530, 10490389, 14986270, 16139060, 20980778, 29972540, 41961556, 52451945, 104903890, 209807780]

約数ペア:

[(1, 209807780), (2, 104903890), (4, 52451945), (5, 41961556), (7, 29972540), (10, 20980778), (13, 16139060), (14, 14986270), (20, 10490389), (26, 8069530), (28, 7493135), (35, 5994508), (52, 4034765), (65, 3227812), (70, 2997254), (91, 2305580), (130, 1613906), (140, 1498627), (182, 1152790), (260, 806953), (364, 576395), (455, 461116), (910, 230558), (1820, 115279)]