51357790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1109}}^1$

素因数の和:1548

約数の個数: 32

約数和(自身を含む): 101178720

約数和(自身を除く): 49820930

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 421, 842, 1109, 2105, 2218, 4210, 4631, 5545, 9262, 11090, 12199, 23155, 24398, 46310, 60995, 121990, 466889, 933778, 2334445, 4668890, 5135779, 10271558, 25678895, 51357790]

約数ペア:

[(1, 51357790), (2, 25678895), (5, 10271558), (10, 5135779), (11, 4668890), (22, 2334445), (55, 933778), (110, 466889), (421, 121990), (842, 60995), (1109, 46310), (2105, 24398), (2218, 23155), (4210, 12199), (4631, 11090), (5545, 9262)]