163948820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{7459}}^1$

素因数の和:7632

約数の個数: 48

約数和(自身を含む): 396036480

約数和(自身を除く): 232087660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 7459, 10990, 14918, 21980, 29836, 37295, 52213, 74590, 104426, 149180, 208852, 261065, 522130, 1044260, 1171063, 2342126, 4684252, 5855315, 8197441, 11710630, 16394882, 23421260, 32789764, 40987205, 81974410, 163948820]

約数ペア:

[(1, 163948820), (2, 81974410), (4, 40987205), (5, 32789764), (7, 23421260), (10, 16394882), (14, 11710630), (20, 8197441), (28, 5855315), (35, 4684252), (70, 2342126), (140, 1171063), (157, 1044260), (314, 522130), (628, 261065), (785, 208852), (1099, 149180), (1570, 104426), (2198, 74590), (3140, 52213), (4396, 37295), (5495, 29836), (7459, 21980), (10990, 14918)]