201920810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{221891}}^1$

素因数の和:221918

約数の個数: 32

約数和(自身を含む): 447334272

約数和(自身を除く): 245413462

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 221891, 443782, 1109455, 1553237, 2218910, 2884583, 3106474, 5769166, 7766185, 14422915, 15532370, 20192081, 28845830, 40384162, 100960405, 201920810]

約数ペア:

[(1, 201920810), (2, 100960405), (5, 40384162), (7, 28845830), (10, 20192081), (13, 15532370), (14, 14422915), (26, 7766185), (35, 5769166), (65, 3106474), (70, 2884583), (91, 2218910), (130, 1553237), (182, 1109455), (455, 443782), (910, 221891)]