20301680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5179}}^1$

素因数の和:5206

約数の個数: 60

約数和(自身を含む): 54918360

約数和(自身を除く): 34616680

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, 5179, 10358, 20716, 25895, 36253, 41432, 51790, 72506, 82864, 103580, 145012, 181265, 207160, 253771, 290024, 362530, 414320, 507542, 580048, 725060, 1015084, 1268855, 1450120, 2030168, 2537710, 2900240, 4060336, 5075420, 10150840, 20301680]

約数ペア:

[(1, 20301680), (2, 10150840), (4, 5075420), (5, 4060336), (7, 2900240), (8, 2537710), (10, 2030168), (14, 1450120), (16, 1268855), (20, 1015084), (28, 725060), (35, 580048), (40, 507542), (49, 414320), (56, 362530), (70, 290024), (80, 253771), (98, 207160), (112, 181265), (140, 145012), (196, 103580), (245, 82864), (280, 72506), (392, 51790), (490, 41432), (560, 36253), (784, 25895), (980, 20716), (1960, 10358), (3920, 5179)]