420734840

素因数分解:

$2^3\times 5^1\times {\mathrm{10518371}}^1$

素因数の和:10518382

約数の個数: 16

約数和(自身を含む): 946653480

約数和(自身を除く): 525918640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10518371, 21036742, 42073484, 52591855, 84146968, 105183710, 210367420, 420734840]

約数ペア:

[(1, 420734840), (2, 210367420), (4, 105183710), (5, 84146968), (8, 52591855), (10, 42073484), (20, 21036742), (40, 10518371)]