64872784

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:643

約数の個数: 40

約数和(自身を含む): 129241728

約数和(自身を除く): 64368944

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 281, 307, 376, 562, 614, 752, 1124, 1228, 2248, 2456, 4496, 4912, 13207, 14429, 26414, 28858, 52828, 57716, 86267, 105656, 115432, 172534, 211312, 230864, 345068, 690136, 1380272, 4054549, 8109098, 16218196, 32436392, 64872784]

約数ペア:

[(1, 64872784), (2, 32436392), (4, 16218196), (8, 8109098), (16, 4054549), (47, 1380272), (94, 690136), (188, 345068), (281, 230864), (307, 211312), (376, 172534), (562, 115432), (614, 105656), (752, 86267), (1124, 57716), (1228, 52828), (2248, 28858), (2456, 26414), (4496, 14429), (4912, 13207)]