13317520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2729}}^1$

素因数の和:2803

約数の個数: 40

約数和(自身を含む): 31482360

約数和(自身を除く): 18164840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 2729, 4880, 5458, 10916, 13645, 21832, 27290, 43664, 54580, 109160, 166469, 218320, 332938, 665876, 832345, 1331752, 1664690, 2663504, 3329380, 6658760, 13317520]

約数ペア:

[(1, 13317520), (2, 6658760), (4, 3329380), (5, 2663504), (8, 1664690), (10, 1331752), (16, 832345), (20, 665876), (40, 332938), (61, 218320), (80, 166469), (122, 109160), (244, 54580), (305, 43664), (488, 27290), (610, 21832), (976, 13645), (1220, 10916), (2440, 5458), (2729, 4880)]