20941680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87257}}^1$

素因数の和:87273

約数の個数: 40

約数和(自身を含む): 64919952

約数和(自身を除く): 43978272

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87257, 174514, 261771, 349028, 436285, 523542, 698056, 872570, 1047084, 1308855, 1396112, 1745140, 2094168, 2617710, 3490280, 4188336, 5235420, 6980560, 10470840, 20941680]

約数ペア:

[(1, 20941680), (2, 10470840), (3, 6980560), (4, 5235420), (5, 4188336), (6, 3490280), (8, 2617710), (10, 2094168), (12, 1745140), (15, 1396112), (16, 1308855), (20, 1047084), (24, 872570), (30, 698056), (40, 523542), (48, 436285), (60, 349028), (80, 261771), (120, 174514), (240, 87257)]