20957520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87323}}^1$

素因数の和:87339

約数の個数: 40

約数和(自身を含む): 64969056

約数和(自身を除く): 44011536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87323, 174646, 261969, 349292, 436615, 523938, 698584, 873230, 1047876, 1309845, 1397168, 1746460, 2095752, 2619690, 3492920, 4191504, 5239380, 6985840, 10478760, 20957520]

約数ペア:

[(1, 20957520), (2, 10478760), (3, 6985840), (4, 5239380), (5, 4191504), (6, 3492920), (8, 2619690), (10, 2095752), (12, 1746460), (15, 1397168), (16, 1309845), (20, 1047876), (24, 873230), (30, 698584), (40, 523938), (48, 436615), (60, 349292), (80, 261969), (120, 174646), (240, 87323)]