218410404140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{138234433}}^1$

素因数の和:138234521

約数の個数: 24

約数和(自身を含む): 464467698240

約数和(自身を除く): 246057294100

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 138234433, 276468866, 552937732, 691172165, 1382344330, 2764688660, 10920520207, 21841040414, 43682080828, 54602601035, 109205202070, 218410404140]

約数ペア:

[(1, 218410404140), (2, 109205202070), (4, 54602601035), (5, 43682080828), (10, 21841040414), (20, 10920520207), (79, 2764688660), (158, 1382344330), (316, 691172165), (395, 552937732), (790, 276468866), (1580, 138234433)]