129221168

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{218279}}^1$

素因数の和:218324

約数の個数: 20

約数和(自身を含む): 257133840

約数和(自身を除く): 127912672

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 218279, 436558, 873116, 1746232, 3492464, 8076323, 16152646, 32305292, 64610584, 129221168]

約数ペア:

[(1, 129221168), (2, 64610584), (4, 32305292), (8, 16152646), (16, 8076323), (37, 3492464), (74, 1746232), (148, 873116), (296, 436558), (592, 218279)]