85381880

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19583}}^1$

素因数の和:19703

約数の個数: 32

約数和(自身を含む): 193881600

約数和(自身を除く): 108499720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 19583, 39166, 78332, 97915, 156664, 195830, 391660, 783320, 2134547, 4269094, 8538188, 10672735, 17076376, 21345470, 42690940, 85381880]

約数ペア:

[(1, 85381880), (2, 42690940), (4, 21345470), (5, 17076376), (8, 10672735), (10, 8538188), (20, 4269094), (40, 2134547), (109, 783320), (218, 391660), (436, 195830), (545, 156664), (872, 97915), (1090, 78332), (2180, 39166), (4360, 19583)]