20397340

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1831}}^1$

素因数の和:2397

約数の個数: 24

約数和(自身を含む): 42934752

約数和(自身を除く): 22537412

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 1831, 2228, 2785, 3662, 5570, 7324, 9155, 11140, 18310, 36620, 1019867, 2039734, 4079468, 5099335, 10198670, 20397340]

約数ペア:

[(1, 20397340), (2, 10198670), (4, 5099335), (5, 4079468), (10, 2039734), (20, 1019867), (557, 36620), (1114, 18310), (1831, 11140), (2228, 9155), (2785, 7324), (3662, 5570)]