20769140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{21193}}^1$

素因数の和:21216

約数の個数: 36

約数和(自身を含む): 50738436

約数和(自身を除く): 29969296

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 21193, 42386, 84772, 105965, 148351, 211930, 296702, 423860, 593404, 741755, 1038457, 1483510, 2076914, 2967020, 4153828, 5192285, 10384570, 20769140]

約数ペア:

[(1, 20769140), (2, 10384570), (4, 5192285), (5, 4153828), (7, 2967020), (10, 2076914), (14, 1483510), (20, 1038457), (28, 741755), (35, 593404), (49, 423860), (70, 296702), (98, 211930), (140, 148351), (196, 105965), (245, 84772), (490, 42386), (980, 21193)]