309638740

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1\times {\mathrm{563}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 660042432

約数和(自身を除く): 350403692

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 257, 428, 514, 535, 563, 1028, 1070, 1126, 1285, 2140, 2252, 2570, 2815, 5140, 5630, 11260, 27499, 54998, 60241, 109996, 120482, 137495, 144691, 240964, 274990, 289382, 301205, 549980, 578764, 602410, 723455, 1204820, 1446910, 2893820, 15481937, 30963874, 61927748, 77409685, 154819370, 309638740]

約数ペア:

[(1, 309638740), (2, 154819370), (4, 77409685), (5, 61927748), (10, 30963874), (20, 15481937), (107, 2893820), (214, 1446910), (257, 1204820), (428, 723455), (514, 602410), (535, 578764), (563, 549980), (1028, 301205), (1070, 289382), (1126, 274990), (1285, 240964), (2140, 144691), (2252, 137495), (2570, 120482), (2815, 109996), (5140, 60241), (5630, 54998), (11260, 27499)]