18186650

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 35354880

約数和(自身を除く): 17168230

約数列:

[1, 2, 5, 10, 25, 47, 50, 71, 94, 109, 142, 218, 235, 355, 470, 545, 710, 1090, 1175, 1775, 2350, 2725, 3337, 3550, 5123, 5450, 6674, 7739, 10246, 15478, 16685, 25615, 33370, 38695, 51230, 77390, 83425, 128075, 166850, 193475, 256150, 363733, 386950, 727466, 1818665, 3637330, 9093325, 18186650]

約数ペア:

[(1, 18186650), (2, 9093325), (5, 3637330), (10, 1818665), (25, 727466), (47, 386950), (50, 363733), (71, 256150), (94, 193475), (109, 166850), (142, 128075), (218, 83425), (235, 77390), (355, 51230), (470, 38695), (545, 33370), (710, 25615), (1090, 16685), (1175, 15478), (1775, 10246), (2350, 7739), (2725, 6674), (3337, 5450), (3550, 5123)]