18420894745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1\times {\mathrm{13171}}^1$

素因数の和:13677

約数の個数: 32

約数和(自身を含む): 24582113280

約数和(自身を除く): 6161218535

約数列:

[1, 5, 11, 55, 59, 295, 431, 649, 2155, 3245, 4741, 13171, 23705, 25429, 65855, 127145, 144881, 279719, 724405, 777089, 1398595, 3885445, 5676701, 8547979, 28383505, 42739895, 62443711, 312218555, 334925359, 1674626795, 3684178949, 18420894745]

約数ペア:

[(1, 18420894745), (5, 3684178949), (11, 1674626795), (55, 334925359), (59, 312218555), (295, 62443711), (431, 42739895), (649, 28383505), (2155, 8547979), (3245, 5676701), (4741, 3885445), (13171, 1398595), (23705, 777089), (25429, 724405), (65855, 279719), (127145, 144881)]