199952720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227219}}^1$

素因数の和:227243

約数の個数: 40

約数和(自身を含む): 507155040

約数和(自身を除く): 307202320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 227219, 454438, 908876, 1136095, 1817752, 2272190, 2499409, 3635504, 4544380, 4998818, 9088760, 9997636, 12497045, 18177520, 19995272, 24994090, 39990544, 49988180, 99976360, 199952720]

約数ペア:

[(1, 199952720), (2, 99976360), (4, 49988180), (5, 39990544), (8, 24994090), (10, 19995272), (11, 18177520), (16, 12497045), (20, 9997636), (22, 9088760), (40, 4998818), (44, 4544380), (55, 3635504), (80, 2499409), (88, 2272190), (110, 1817752), (176, 1136095), (220, 908876), (440, 454438), (880, 227219)]