291248740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{2549}}^1$

素因数の和:2784

約数の個数: 48

約数和(自身を含む): 636174000

約数和(自身を除く): 344925260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 197, 290, 394, 580, 788, 985, 1970, 2549, 3940, 5098, 5713, 10196, 11426, 12745, 22852, 25490, 28565, 50980, 57130, 73921, 114260, 147842, 295684, 369605, 502153, 739210, 1004306, 1478420, 2008612, 2510765, 5021530, 10043060, 14562437, 29124874, 58249748, 72812185, 145624370, 291248740]

約数ペア:

[(1, 291248740), (2, 145624370), (4, 72812185), (5, 58249748), (10, 29124874), (20, 14562437), (29, 10043060), (58, 5021530), (116, 2510765), (145, 2008612), (197, 1478420), (290, 1004306), (394, 739210), (580, 502153), (788, 369605), (985, 295684), (1970, 147842), (2549, 114260), (3940, 73921), (5098, 57130), (5713, 50980), (10196, 28565), (11426, 25490), (12745, 22852)]