81397872

素因数分解:

$2^4\times 3^4\times {\mathrm{181}}^1\times {\mathrm{347}}^1$

素因数の和:548

約数の個数: 100

約数和(自身を含む): 237573336

約数和(自身を除く): 156175464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 181, 216, 324, 347, 362, 432, 543, 648, 694, 724, 1041, 1086, 1296, 1388, 1448, 1629, 2082, 2172, 2776, 2896, 3123, 3258, 4164, 4344, 4887, 5552, 6246, 6516, 8328, 8688, 9369, 9774, 12492, 13032, 14661, 16656, 18738, 19548, 24984, 26064, 28107, 29322, 37476, 39096, 49968, 56214, 58644, 62807, 74952, 78192, 112428, 117288, 125614, 149904, 188421, 224856, 234576, 251228, 376842, 449712, 502456, 565263, 753684, 1004912, 1130526, 1507368, 1695789, 2261052, 3014736, 3391578, 4522104, 5087367, 6783156, 9044208, 10174734, 13566312, 20349468, 27132624, 40698936, 81397872]

約数ペア:

[(1, 81397872), (2, 40698936), (3, 27132624), (4, 20349468), (6, 13566312), (8, 10174734), (9, 9044208), (12, 6783156), (16, 5087367), (18, 4522104), (24, 3391578), (27, 3014736), (36, 2261052), (48, 1695789), (54, 1507368), (72, 1130526), (81, 1004912), (108, 753684), (144, 565263), (162, 502456), (181, 449712), (216, 376842), (324, 251228), (347, 234576), (362, 224856), (432, 188421), (543, 149904), (648, 125614), (694, 117288), (724, 112428), (1041, 78192), (1086, 74952), (1296, 62807), (1388, 58644), (1448, 56214), (1629, 49968), (2082, 39096), (2172, 37476), (2776, 29322), (2896, 28107), (3123, 26064), (3258, 24984), (4164, 19548), (4344, 18738), (4887, 16656), (5552, 14661), (6246, 13032), (6516, 12492), (8328, 9774), (8688, 9369)]