1815804547280

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{55495249}}^1$

素因数の和:55495671

約数の個数: 40

約数和(自身を含む): 4232067765000

約数和(自身を除く): 2416263217720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 6544, 8180, 16360, 32720, 55495249, 110990498, 221980996, 277476245, 443961992, 554952490, 887923984, 1109904980, 2219809960, 4439619920, 22697556841, 45395113682, 90790227364, 113487784205, 181580454728, 226975568410, 363160909456, 453951136820, 907902273640, 1815804547280]

約数ペア:

[(1, 1815804547280), (2, 907902273640), (4, 453951136820), (5, 363160909456), (8, 226975568410), (10, 181580454728), (16, 113487784205), (20, 90790227364), (40, 45395113682), (80, 22697556841), (409, 4439619920), (818, 2219809960), (1636, 1109904980), (2045, 887923984), (3272, 554952490), (4090, 443961992), (6544, 277476245), (8180, 221980996), (16360, 110990498), (32720, 55495249)]