889240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 64

約数和(自身を含む): 2280960

約数和(自身を除く): 1391720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 47, 55, 86, 88, 94, 110, 172, 188, 215, 220, 235, 344, 376, 430, 440, 470, 473, 517, 860, 940, 946, 1034, 1720, 1880, 1892, 2021, 2068, 2365, 2585, 3784, 4042, 4136, 4730, 5170, 8084, 9460, 10105, 10340, 16168, 18920, 20210, 20680, 22231, 40420, 44462, 80840, 88924, 111155, 177848, 222310, 444620, 889240]

約数ペア:

[(1, 889240), (2, 444620), (4, 222310), (5, 177848), (8, 111155), (10, 88924), (11, 80840), (20, 44462), (22, 40420), (40, 22231), (43, 20680), (44, 20210), (47, 18920), (55, 16168), (86, 10340), (88, 10105), (94, 9460), (110, 8084), (172, 5170), (188, 4730), (215, 4136), (220, 4042), (235, 3784), (344, 2585), (376, 2365), (430, 2068), (440, 2021), (470, 1892), (473, 1880), (517, 1720), (860, 1034), (940, 946)]