9991507540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3671}}^1\times {\mathrm{19441}}^1$

素因数の和:23128

約数の個数: 48

約数和(自身を含む): 23987384064

約数和(自身を除く): 13995876524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3671, 7342, 14684, 18355, 19441, 25697, 36710, 38882, 51394, 73420, 77764, 97205, 102788, 128485, 136087, 194410, 256970, 272174, 388820, 513940, 544348, 680435, 1360870, 2721740, 71367911, 142735822, 285471644, 356839555, 499575377, 713679110, 999150754, 1427358220, 1998301508, 2497876885, 4995753770, 9991507540]

約数ペア:

[(1, 9991507540), (2, 4995753770), (4, 2497876885), (5, 1998301508), (7, 1427358220), (10, 999150754), (14, 713679110), (20, 499575377), (28, 356839555), (35, 285471644), (70, 142735822), (140, 71367911), (3671, 2721740), (7342, 1360870), (14684, 680435), (18355, 544348), (19441, 513940), (25697, 388820), (36710, 272174), (38882, 256970), (51394, 194410), (73420, 136087), (77764, 128485), (97205, 102788)]