201782920

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{21107}}^1$

素因数の和:21357

約数の個数: 32

約数和(自身を含む): 455932800

約数和(自身を除く): 254149880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 21107, 42214, 84428, 105535, 168856, 211070, 422140, 844280, 5044573, 10089146, 20178292, 25222865, 40356584, 50445730, 100891460, 201782920]

約数ペア:

[(1, 201782920), (2, 100891460), (4, 50445730), (5, 40356584), (8, 25222865), (10, 20178292), (20, 10089146), (40, 5044573), (239, 844280), (478, 422140), (956, 211070), (1195, 168856), (1912, 105535), (2390, 84428), (4780, 42214), (9560, 21107)]