28573880

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{883}}^1$

素因数の和:1703

約数の個数: 32

約数和(自身を含む): 64443600

約数和(自身を除く): 35869720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 883, 1618, 1766, 3236, 3532, 4045, 4415, 6472, 7064, 8090, 8830, 16180, 17660, 32360, 35320, 714347, 1428694, 2857388, 3571735, 5714776, 7143470, 14286940, 28573880]

約数ペア:

[(1, 28573880), (2, 14286940), (4, 7143470), (5, 5714776), (8, 3571735), (10, 2857388), (20, 1428694), (40, 714347), (809, 35320), (883, 32360), (1618, 17660), (1766, 16180), (3236, 8830), (3532, 8090), (4045, 7064), (4415, 6472)]