201987580

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1\times {\mathrm{491}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 432786816

約数和(自身を除く): 230799236

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 307, 335, 491, 614, 670, 982, 1228, 1340, 1535, 1964, 2455, 3070, 4910, 6140, 9820, 20569, 32897, 41138, 65794, 82276, 102845, 131588, 150737, 164485, 205690, 301474, 328970, 411380, 602948, 657940, 753685, 1507370, 3014740, 10099379, 20198758, 40397516, 50496895, 100993790, 201987580]

約数ペア:

[(1, 201987580), (2, 100993790), (4, 50496895), (5, 40397516), (10, 20198758), (20, 10099379), (67, 3014740), (134, 1507370), (268, 753685), (307, 657940), (335, 602948), (491, 411380), (614, 328970), (670, 301474), (982, 205690), (1228, 164485), (1340, 150737), (1535, 131588), (1964, 102845), (2455, 82276), (3070, 65794), (4910, 41138), (6140, 32897), (9820, 20569)]