209318210

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1\times {\mathrm{491}}^1$

素因数の和:1066

約数の個数: 32

約数和(自身を含む): 382579200

約数和(自身を除く): 173260990

約数列:

[1, 2, 5, 10, 89, 178, 445, 479, 491, 890, 958, 982, 2395, 2455, 4790, 4910, 42631, 43699, 85262, 87398, 213155, 218495, 235189, 426310, 436990, 470378, 1175945, 2351890, 20931821, 41863642, 104659105, 209318210]

約数ペア:

[(1, 209318210), (2, 104659105), (5, 41863642), (10, 20931821), (89, 2351890), (178, 1175945), (445, 470378), (479, 436990), (491, 426310), (890, 235189), (958, 218495), (982, 213155), (2395, 87398), (2455, 85262), (4790, 43699), (4910, 42631)]