28964980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11969}}^1$

素因数の和:12000

約数の個数: 36

約数和(自身を含む): 66864420

約数和(自身を除く): 37899440

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11969, 23938, 47876, 59845, 119690, 131659, 239380, 263318, 526636, 658295, 1316590, 1448249, 2633180, 2896498, 5792996, 7241245, 14482490, 28964980]

約数ペア:

[(1, 28964980), (2, 14482490), (4, 7241245), (5, 5792996), (10, 2896498), (11, 2633180), (20, 1448249), (22, 1316590), (44, 658295), (55, 526636), (110, 263318), (121, 239380), (220, 131659), (242, 119690), (484, 59845), (605, 47876), (1210, 23938), (2420, 11969)]