20343950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{787}}^1$

素因数の和:857

約数の個数: 48

約数和(自身を含む): 42211584

約数和(自身を除く): 21867634

約数列:

[1, 2, 5, 10, 11, 22, 25, 47, 50, 55, 94, 110, 235, 275, 470, 517, 550, 787, 1034, 1175, 1574, 2350, 2585, 3935, 5170, 7870, 8657, 12925, 17314, 19675, 25850, 36989, 39350, 43285, 73978, 86570, 184945, 216425, 369890, 406879, 432850, 813758, 924725, 1849450, 2034395, 4068790, 10171975, 20343950]

約数ペア:

[(1, 20343950), (2, 10171975), (5, 4068790), (10, 2034395), (11, 1849450), (22, 924725), (25, 813758), (47, 432850), (50, 406879), (55, 369890), (94, 216425), (110, 184945), (235, 86570), (275, 73978), (470, 43285), (517, 39350), (550, 36989), (787, 25850), (1034, 19675), (1175, 17314), (1574, 12925), (2350, 8657), (2585, 7870), (3935, 5170)]