397258480

素因数分解:

$2^4\times 5^1\times {\mathrm{4965731}}^1$

素因数の和:4965744

約数の個数: 20

約数和(自身を含む): 923626152

約数和(自身を除く): 526367672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4965731, 9931462, 19862924, 24828655, 39725848, 49657310, 79451696, 99314620, 198629240, 397258480]

約数ペア:

[(1, 397258480), (2, 198629240), (4, 99314620), (5, 79451696), (8, 49657310), (10, 39725848), (16, 24828655), (20, 19862924), (40, 9931462), (80, 4965731)]