90455540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{1439}}^1$

素因数の和:1904

約数の個数: 48

約数和(自身を含む): 217728000

約数和(自身を除く): 127272460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 449, 898, 1439, 1796, 2245, 2878, 3143, 4490, 5756, 6286, 7195, 8980, 10073, 12572, 14390, 15715, 20146, 28780, 31430, 40292, 50365, 62860, 100730, 201460, 646111, 1292222, 2584444, 3230555, 4522777, 6461110, 9045554, 12922220, 18091108, 22613885, 45227770, 90455540]

約数ペア:

[(1, 90455540), (2, 45227770), (4, 22613885), (5, 18091108), (7, 12922220), (10, 9045554), (14, 6461110), (20, 4522777), (28, 3230555), (35, 2584444), (70, 1292222), (140, 646111), (449, 201460), (898, 100730), (1439, 62860), (1796, 50365), (2245, 40292), (2878, 31430), (3143, 28780), (4490, 20146), (5756, 15715), (6286, 14390), (7195, 12572), (8980, 10073)]