201787720

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{33857}}^1$

素因数の和:34017

約数の個数: 32

約数和(自身を含む): 457083000

約数和(自身を除く): 255295280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 33857, 67714, 135428, 169285, 270856, 338570, 677140, 1354280, 5044693, 10089386, 20178772, 25223465, 40357544, 50446930, 100893860, 201787720]

約数ペア:

[(1, 201787720), (2, 100893860), (4, 50446930), (5, 40357544), (8, 25223465), (10, 20178772), (20, 10089386), (40, 5044693), (149, 1354280), (298, 677140), (596, 338570), (745, 270856), (1192, 169285), (1490, 135428), (2980, 67714), (5960, 33857)]