18418712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 21498088

約数列:

[1, 2, 4, 8, 13, 26, 29, 31, 52, 58, 62, 104, 116, 124, 197, 232, 248, 377, 394, 403, 754, 788, 806, 899, 1508, 1576, 1612, 1798, 2561, 3016, 3224, 3596, 5122, 5713, 6107, 7192, 10244, 11426, 11687, 12214, 20488, 22852, 23374, 24428, 45704, 46748, 48856, 74269, 79391, 93496, 148538, 158782, 177103, 297076, 317564, 354206, 594152, 635128, 708412, 1416824, 2302339, 4604678, 9209356, 18418712]

約数ペア:

[(1, 18418712), (2, 9209356), (4, 4604678), (8, 2302339), (13, 1416824), (26, 708412), (29, 635128), (31, 594152), (52, 354206), (58, 317564), (62, 297076), (104, 177103), (116, 158782), (124, 148538), (197, 93496), (232, 79391), (248, 74269), (377, 48856), (394, 46748), (403, 45704), (754, 24428), (788, 23374), (806, 22852), (899, 20488), (1508, 12214), (1576, 11687), (1612, 11426), (1798, 10244), (2561, 7192), (3016, 6107), (3224, 5713), (3596, 5122)]