645551956

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{490541}}^1$

素因数の和:490599

約数の個数: 24

約数和(自身を含む): 1318576896

約数和(自身を除く): 673024940

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 490541, 981082, 1962164, 3433787, 6867574, 13735148, 23055427, 46110854, 92221708, 161387989, 322775978, 645551956]

約数ペア:

[(1, 645551956), (2, 322775978), (4, 161387989), (7, 92221708), (14, 46110854), (28, 23055427), (47, 13735148), (94, 6867574), (188, 3433787), (329, 1962164), (658, 981082), (1316, 490541)]