1408420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5417}}^1$

素因数の和:5439

約数の個数: 24

約数和(自身を含む): 3185784

約数和(自身を除く): 1777364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5417, 10834, 21668, 27085, 54170, 70421, 108340, 140842, 281684, 352105, 704210, 1408420]

約数ペア:

[(1, 1408420), (2, 704210), (4, 352105), (5, 281684), (10, 140842), (13, 108340), (20, 70421), (26, 54170), (52, 27085), (65, 21668), (130, 10834), (260, 5417)]