7983980

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{647}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 16819488

約数和(自身を除く): 8835508

約数列:

[1, 2, 4, 5, 10, 20, 617, 647, 1234, 1294, 2468, 2588, 3085, 3235, 6170, 6470, 12340, 12940, 399199, 798398, 1596796, 1995995, 3991990, 7983980]

約数ペア:

[(1, 7983980), (2, 3991990), (4, 1995995), (5, 1596796), (10, 798398), (20, 399199), (617, 12940), (647, 12340), (1234, 6470), (1294, 6170), (2468, 3235), (2588, 3085)]