20870864

素因数分解:

$2^4\times 7^3\times {\mathrm{3803}}^1$

素因数の和:3832

約数の個数: 40

約数和(自身を含む): 47169600

約数和(自身を除く): 26298736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3803, 5488, 7606, 15212, 26621, 30424, 53242, 60848, 106484, 186347, 212968, 372694, 425936, 745388, 1304429, 1490776, 2608858, 2981552, 5217716, 10435432, 20870864]

約数ペア:

[(1, 20870864), (2, 10435432), (4, 5217716), (7, 2981552), (8, 2608858), (14, 1490776), (16, 1304429), (28, 745388), (49, 425936), (56, 372694), (98, 212968), (112, 186347), (196, 106484), (343, 60848), (392, 53242), (686, 30424), (784, 26621), (1372, 15212), (2744, 7606), (3803, 5488)]