12980272

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:517

約数の個数: 40

約数和(自身を含む): 26373312

約数和(自身を除く): 13393040

約数列:

[1, 2, 4, 8, 16, 41, 47, 82, 94, 164, 188, 328, 376, 421, 656, 752, 842, 1684, 1927, 3368, 3854, 6736, 7708, 15416, 17261, 19787, 30832, 34522, 39574, 69044, 79148, 138088, 158296, 276176, 316592, 811267, 1622534, 3245068, 6490136, 12980272]

約数ペア:

[(1, 12980272), (2, 6490136), (4, 3245068), (8, 1622534), (16, 811267), (41, 316592), (47, 276176), (82, 158296), (94, 138088), (164, 79148), (188, 69044), (328, 39574), (376, 34522), (421, 30832), (656, 19787), (752, 17261), (842, 15416), (1684, 7708), (1927, 6736), (3368, 3854)]