20958560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18713}}^1$

素因数の和:18735

約数の個数: 48

約数和(自身を含む): 56591136

約数和(自身を除く): 35632576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18713, 37426, 74852, 93565, 130991, 149704, 187130, 261982, 299408, 374260, 523964, 598816, 654955, 748520, 1047928, 1309910, 1497040, 2095856, 2619820, 2994080, 4191712, 5239640, 10479280, 20958560]

約数ペア:

[(1, 20958560), (2, 10479280), (4, 5239640), (5, 4191712), (7, 2994080), (8, 2619820), (10, 2095856), (14, 1497040), (16, 1309910), (20, 1047928), (28, 748520), (32, 654955), (35, 598816), (40, 523964), (56, 374260), (70, 299408), (80, 261982), (112, 187130), (140, 149704), (160, 130991), (224, 93565), (280, 74852), (560, 37426), (1120, 18713)]