15897880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{7499}}^1$

素因数の和:7563

約数の個数: 32

約数和(自身を含む): 36450000

約数和(自身を除く): 20552120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 7499, 14998, 29996, 37495, 59992, 74990, 149980, 299960, 397447, 794894, 1589788, 1987235, 3179576, 3974470, 7948940, 15897880]

約数ペア:

[(1, 15897880), (2, 7948940), (4, 3974470), (5, 3179576), (8, 1987235), (10, 1589788), (20, 794894), (40, 397447), (53, 299960), (106, 149980), (212, 74990), (265, 59992), (424, 37495), (530, 29996), (1060, 14998), (2120, 7499)]