1639087288

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{389}}^1\times {\mathrm{1459}}^1$

素因数の和:1892

約数の個数: 48

約数和(自身を含む): 3254121000

約数和(自身を除く): 1615033712

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 389, 722, 778, 1444, 1459, 1556, 2888, 2918, 3112, 5836, 7391, 11672, 14782, 27721, 29564, 55442, 59128, 110884, 140429, 221768, 280858, 526699, 561716, 567551, 1053398, 1123432, 1135102, 2106796, 2270204, 4213592, 4540408, 10783469, 21566938, 43133876, 86267752, 204885911, 409771822, 819543644, 1639087288]

約数ペア:

[(1, 1639087288), (2, 819543644), (4, 409771822), (8, 204885911), (19, 86267752), (38, 43133876), (76, 21566938), (152, 10783469), (361, 4540408), (389, 4213592), (722, 2270204), (778, 2106796), (1444, 1135102), (1459, 1123432), (1556, 1053398), (2888, 567551), (2918, 561716), (3112, 526699), (5836, 280858), (7391, 221768), (11672, 140429), (14782, 110884), (27721, 59128), (29564, 55442)]