1294372220

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{79801}}^1$

素因数の和:80621

約数の個数: 24

約数和(自身を含む): 2721567408

約数和(自身を除く): 1427195188

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4055, 8110, 16220, 79801, 159602, 319204, 399005, 798010, 1596020, 64718611, 129437222, 258874444, 323593055, 647186110, 1294372220]

約数ペア:

[(1, 1294372220), (2, 647186110), (4, 323593055), (5, 258874444), (10, 129437222), (20, 64718611), (811, 1596020), (1622, 798010), (3244, 399005), (4055, 319204), (8110, 159602), (16220, 79801)]