221452010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{21563}}^1$

素因数の和:21662

約数の個数: 32

約数和(自身を含む): 434730240

約数和(自身を除く): 213278230

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2054, 5135, 10270, 21563, 43126, 107815, 215630, 280319, 560638, 1401595, 1703477, 2803190, 3406954, 8517385, 17034770, 22145201, 44290402, 110726005, 221452010]

約数ペア:

[(1, 221452010), (2, 110726005), (5, 44290402), (10, 22145201), (13, 17034770), (26, 8517385), (65, 3406954), (79, 2803190), (130, 1703477), (158, 1401595), (395, 560638), (790, 280319), (1027, 215630), (2054, 107815), (5135, 43126), (10270, 21563)]