81490374

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{71861}}^1$

素因数の和:71882

約数の個数: 40

約数和(自身を含む): 208687248

約数和(自身を除く): 127196874

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 71861, 143722, 215583, 431166, 503027, 646749, 1006054, 1293498, 1509081, 1940247, 3018162, 3880494, 4527243, 5820741, 9054486, 11641482, 13581729, 27163458, 40745187, 81490374]

約数ペア:

[(1, 81490374), (2, 40745187), (3, 27163458), (6, 13581729), (7, 11641482), (9, 9054486), (14, 5820741), (18, 4527243), (21, 3880494), (27, 3018162), (42, 1940247), (54, 1509081), (63, 1293498), (81, 1006054), (126, 646749), (162, 503027), (189, 431166), (378, 215583), (567, 143722), (1134, 71861)]