1267640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 3231360

約数和(自身を除く): 1963720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 67, 86, 88, 110, 134, 172, 215, 220, 268, 335, 344, 430, 440, 473, 536, 670, 737, 860, 946, 1340, 1474, 1720, 1892, 2365, 2680, 2881, 2948, 3685, 3784, 4730, 5762, 5896, 7370, 9460, 11524, 14405, 14740, 18920, 23048, 28810, 29480, 31691, 57620, 63382, 115240, 126764, 158455, 253528, 316910, 633820, 1267640]

約数ペア:

[(1, 1267640), (2, 633820), (4, 316910), (5, 253528), (8, 158455), (10, 126764), (11, 115240), (20, 63382), (22, 57620), (40, 31691), (43, 29480), (44, 28810), (55, 23048), (67, 18920), (86, 14740), (88, 14405), (110, 11524), (134, 9460), (172, 7370), (215, 5896), (220, 5762), (268, 4730), (335, 3784), (344, 3685), (430, 2948), (440, 2881), (473, 2680), (536, 2365), (670, 1892), (737, 1720), (860, 1474), (946, 1340)]