209887984

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{2389}}^1$

素因数の和:2450

約数の個数: 60

約数和(自身を含む): 454912600

約数和(自身を除く): 245024616

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 289, 304, 323, 578, 646, 1156, 1292, 2312, 2389, 2584, 4624, 4778, 5168, 5491, 9556, 10982, 19112, 21964, 38224, 40613, 43928, 45391, 81226, 87856, 90782, 162452, 181564, 324904, 363128, 649808, 690421, 726256, 771647, 1380842, 1543294, 2761684, 3086588, 5523368, 6173176, 11046736, 12346352, 13117999, 26235998, 52471996, 104943992, 209887984]

約数ペア:

[(1, 209887984), (2, 104943992), (4, 52471996), (8, 26235998), (16, 13117999), (17, 12346352), (19, 11046736), (34, 6173176), (38, 5523368), (68, 3086588), (76, 2761684), (136, 1543294), (152, 1380842), (272, 771647), (289, 726256), (304, 690421), (323, 649808), (578, 363128), (646, 324904), (1156, 181564), (1292, 162452), (2312, 90782), (2389, 87856), (2584, 81226), (4624, 45391), (4778, 43928), (5168, 40613), (5491, 38224), (9556, 21964), (10982, 19112)]