20001688

素因数分解:

$2^3\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1423}}^1$

素因数の和:1687

約数の個数: 32

約数和(自身を含む): 43061760

約数和(自身を除く): 23060072

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 251, 502, 1004, 1423, 1757, 2008, 2846, 3514, 5692, 7028, 9961, 11384, 14056, 19922, 39844, 79688, 357173, 714346, 1428692, 2500211, 2857384, 5000422, 10000844, 20001688]

約数ペア:

[(1, 20001688), (2, 10000844), (4, 5000422), (7, 2857384), (8, 2500211), (14, 1428692), (28, 714346), (56, 357173), (251, 79688), (502, 39844), (1004, 19922), (1423, 14056), (1757, 11384), (2008, 9961), (2846, 7028), (3514, 5692)]