221650825

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{1559}}^1$

素因数の和:1638

約数の個数: 36

約数和(自身を含む): 308730240

約数和(自身を除く): 87079415

約数列:

[1, 5, 11, 25, 47, 55, 121, 235, 275, 517, 605, 1175, 1559, 2585, 3025, 5687, 7795, 12925, 17149, 28435, 38975, 73273, 85745, 142175, 188639, 366365, 428725, 806003, 943195, 1831825, 4030015, 4715975, 8866033, 20150075, 44330165, 221650825]

約数ペア:

[(1, 221650825), (5, 44330165), (11, 20150075), (25, 8866033), (47, 4715975), (55, 4030015), (121, 1831825), (235, 943195), (275, 806003), (517, 428725), (605, 366365), (1175, 188639), (1559, 142175), (2585, 85745), (3025, 73273), (5687, 38975), (7795, 28435), (12925, 17149)]