20604640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18397}}^1$

素因数の和:18419

約数の個数: 48

約数和(自身を含む): 55635552

約数和(自身を除く): 35030912

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, 18397, 36794, 73588, 91985, 128779, 147176, 183970, 257558, 294352, 367940, 515116, 588704, 643895, 735880, 1030232, 1287790, 1471760, 2060464, 2575580, 2943520, 4120928, 5151160, 10302320, 20604640]

約数ペア:

[(1, 20604640), (2, 10302320), (4, 5151160), (5, 4120928), (7, 2943520), (8, 2575580), (10, 2060464), (14, 1471760), (16, 1287790), (20, 1030232), (28, 735880), (32, 643895), (35, 588704), (40, 515116), (56, 367940), (70, 294352), (80, 257558), (112, 183970), (140, 147176), (160, 128779), (224, 91985), (280, 73588), (560, 36794), (1120, 18397)]