28031920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7151}}^1$

素因数の和:7178

約数の個数: 60

約数和(自身を含む): 75825504

約数和(自身を除く): 47793584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 7151, 14302, 28604, 35755, 50057, 57208, 71510, 100114, 114416, 143020, 200228, 250285, 286040, 350399, 400456, 500570, 572080, 700798, 800912, 1001140, 1401596, 1751995, 2002280, 2803192, 3503990, 4004560, 5606384, 7007980, 14015960, 28031920]

約数ペア:

[(1, 28031920), (2, 14015960), (4, 7007980), (5, 5606384), (7, 4004560), (8, 3503990), (10, 2803192), (14, 2002280), (16, 1751995), (20, 1401596), (28, 1001140), (35, 800912), (40, 700798), (49, 572080), (56, 500570), (70, 400456), (80, 350399), (98, 286040), (112, 250285), (140, 200228), (196, 143020), (245, 114416), (280, 100114), (392, 71510), (490, 57208), (560, 50057), (784, 35755), (980, 28604), (1960, 14302), (3920, 7151)]