397138630

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{810487}}^1$

素因数の和:810508

約数の個数: 24

約数和(自身を含む): 831560688

約数和(自身を除く): 434422058

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 810487, 1620974, 4052435, 5673409, 8104870, 11346818, 28367045, 39713863, 56734090, 79427726, 198569315, 397138630]

約数ペア:

[(1, 397138630), (2, 198569315), (5, 79427726), (7, 56734090), (10, 39713863), (14, 28367045), (35, 11346818), (49, 8104870), (70, 5673409), (98, 4052435), (245, 1620974), (490, 810487)]