20512397560

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{6178433}}^1$

素因数の和:6178527

約数の個数: 32

約数和(自身を含む): 46708961040

約数和(自身を除く): 26196563480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 6178433, 12356866, 24713732, 30892165, 49427464, 61784330, 123568660, 247137320, 512809939, 1025619878, 2051239756, 2564049695, 4102479512, 5128099390, 10256198780, 20512397560]

約数ペア:

[(1, 20512397560), (2, 10256198780), (4, 5128099390), (5, 4102479512), (8, 2564049695), (10, 2051239756), (20, 1025619878), (40, 512809939), (83, 247137320), (166, 123568660), (332, 61784330), (415, 49427464), (664, 30892165), (830, 24713732), (1660, 12356866), (3320, 6178433)]