388264910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{19501}}^1$

素因数の和:19700

約数の個数: 32

約数和(自身を含む): 766662624

約数和(自身を除く): 378397714

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181, 362, 905, 1810, 1991, 3982, 9955, 19501, 19910, 39002, 97505, 195010, 214511, 429022, 1072555, 2145110, 3529681, 7059362, 17648405, 35296810, 38826491, 77652982, 194132455, 388264910]

約数ペア:

[(1, 388264910), (2, 194132455), (5, 77652982), (10, 38826491), (11, 35296810), (22, 17648405), (55, 7059362), (110, 3529681), (181, 2145110), (362, 1072555), (905, 429022), (1810, 214511), (1991, 195010), (3982, 97505), (9955, 39002), (19501, 19910)]