81185776

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:462

約数の個数: 80

約数和(自身を含む): 188876800

約数和(自身を除く): 107691024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 67, 112, 124, 134, 217, 248, 268, 349, 434, 469, 496, 536, 698, 868, 938, 1072, 1396, 1736, 1876, 2077, 2443, 2792, 3472, 3752, 4154, 4886, 5584, 7504, 8308, 9772, 10819, 14539, 16616, 19544, 21638, 23383, 29078, 33232, 39088, 43276, 46766, 58156, 75733, 86552, 93532, 116312, 151466, 163681, 173104, 187064, 232624, 302932, 327362, 374128, 605864, 654724, 724873, 1211728, 1309448, 1449746, 2618896, 2899492, 5074111, 5798984, 10148222, 11597968, 20296444, 40592888, 81185776]

約数ペア:

[(1, 81185776), (2, 40592888), (4, 20296444), (7, 11597968), (8, 10148222), (14, 5798984), (16, 5074111), (28, 2899492), (31, 2618896), (56, 1449746), (62, 1309448), (67, 1211728), (112, 724873), (124, 654724), (134, 605864), (217, 374128), (248, 327362), (268, 302932), (349, 232624), (434, 187064), (469, 173104), (496, 163681), (536, 151466), (698, 116312), (868, 93532), (938, 86552), (1072, 75733), (1396, 58156), (1736, 46766), (1876, 43276), (2077, 39088), (2443, 33232), (2792, 29078), (3472, 23383), (3752, 21638), (4154, 19544), (4886, 16616), (5584, 14539), (7504, 10819), (8308, 9772)]