129550840

素因数分解:

$2^3\times 5^1\times {\mathrm{3238771}}^1$

素因数の和:3238782

約数の個数: 16

約数和(自身を含む): 291489480

約数和(自身を除く): 161938640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3238771, 6477542, 12955084, 16193855, 25910168, 32387710, 64775420, 129550840]

約数ペア:

[(1, 129550840), (2, 64775420), (4, 32387710), (5, 25910168), (8, 16193855), (10, 12955084), (20, 6477542), (40, 3238771)]