81465736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21529}}^1$

素因数の和:21589

約数の個数: 32

約数和(自身を含む): 170517600

約数和(自身を除く): 89051864

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 21529, 43058, 86116, 172232, 236819, 473638, 925747, 947276, 1851494, 1894552, 3702988, 7405976, 10183217, 20366434, 40732868, 81465736]

約数ペア:

[(1, 81465736), (2, 40732868), (4, 20366434), (8, 10183217), (11, 7405976), (22, 3702988), (43, 1894552), (44, 1851494), (86, 947276), (88, 925747), (172, 473638), (344, 236819), (473, 172232), (946, 86116), (1892, 43058), (3784, 21529)]