81981768

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{1609}}^1$

素因数の和:1822

約数の個数: 64

約数和(自身を含む): 224884800

約数和(自身を除く): 142903032

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 193, 264, 386, 579, 772, 1158, 1544, 1609, 2123, 2316, 3218, 4246, 4632, 4827, 6369, 6436, 8492, 9654, 12738, 12872, 16984, 17699, 19308, 25476, 35398, 38616, 50952, 53097, 70796, 106194, 141592, 212388, 310537, 424776, 621074, 931611, 1242148, 1863222, 2484296, 3415907, 3726444, 6831814, 7452888, 10247721, 13663628, 20495442, 27327256, 40990884, 81981768]

約数ペア:

[(1, 81981768), (2, 40990884), (3, 27327256), (4, 20495442), (6, 13663628), (8, 10247721), (11, 7452888), (12, 6831814), (22, 3726444), (24, 3415907), (33, 2484296), (44, 1863222), (66, 1242148), (88, 931611), (132, 621074), (193, 424776), (264, 310537), (386, 212388), (579, 141592), (772, 106194), (1158, 70796), (1544, 53097), (1609, 50952), (2123, 38616), (2316, 35398), (3218, 25476), (4246, 19308), (4632, 17699), (4827, 16984), (6369, 12872), (6436, 12738), (8492, 9654)]