8009467780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1061}}^1\times {\mathrm{4241}}^1$

素因数の和:5400

約数の個数: 48

約数和(自身を含む): 17028915120

約数和(自身を除く): 9019447340

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1061, 1780, 2122, 4241, 4244, 5305, 8482, 10610, 16964, 21205, 21220, 42410, 84820, 94429, 188858, 377449, 377716, 472145, 754898, 944290, 1509796, 1887245, 1888580, 3774490, 4499701, 7548980, 8999402, 17998804, 22498505, 44997010, 89994020, 400473389, 800946778, 1601893556, 2002366945, 4004733890, 8009467780]

約数ペア:

[(1, 8009467780), (2, 4004733890), (4, 2002366945), (5, 1601893556), (10, 800946778), (20, 400473389), (89, 89994020), (178, 44997010), (356, 22498505), (445, 17998804), (890, 8999402), (1061, 7548980), (1780, 4499701), (2122, 3774490), (4241, 1888580), (4244, 1887245), (5305, 1509796), (8482, 944290), (10610, 754898), (16964, 472145), (21205, 377716), (21220, 377449), (42410, 188858), (84820, 94429)]