208120

素因数分解:

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

素因数の和:76

約数の個数: 48

約数和(自身を含む): 526680

約数和(自身を除く): 318560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 121, 172, 215, 220, 242, 344, 430, 440, 473, 484, 605, 860, 946, 968, 1210, 1720, 1892, 2365, 2420, 3784, 4730, 4840, 5203, 9460, 10406, 18920, 20812, 26015, 41624, 52030, 104060, 208120]

約数ペア:

[(1, 208120), (2, 104060), (4, 52030), (5, 41624), (8, 26015), (10, 20812), (11, 18920), (20, 10406), (22, 9460), (40, 5203), (43, 4840), (44, 4730), (55, 3784), (86, 2420), (88, 2365), (110, 1892), (121, 1720), (172, 1210), (215, 968), (220, 946), (242, 860), (344, 605), (430, 484), (440, 473)]