398241410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{28879}}^1$

素因数の和:29090

約数の個数: 32

約数和(自身を含む): 823426560

約数和(自身を除く): 425185150

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1379, 1970, 2758, 6895, 13790, 28879, 57758, 144395, 202153, 288790, 404306, 1010765, 2021530, 5689163, 11378326, 28445815, 39824141, 56891630, 79648282, 199120705, 398241410]

約数ペア:

[(1, 398241410), (2, 199120705), (5, 79648282), (7, 56891630), (10, 39824141), (14, 28445815), (35, 11378326), (70, 5689163), (197, 2021530), (394, 1010765), (985, 404306), (1379, 288790), (1970, 202153), (2758, 144395), (6895, 57758), (13790, 28879)]