15321880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{54721}}^1$

素因数の和:54739

約数の個数: 32

約数和(自身を含む): 39399840

約数和(自身を除く): 24077960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 54721, 109442, 218884, 273605, 383047, 437768, 547210, 766094, 1094420, 1532188, 1915235, 2188840, 3064376, 3830470, 7660940, 15321880]

約数ペア:

[(1, 15321880), (2, 7660940), (4, 3830470), (5, 3064376), (7, 2188840), (8, 1915235), (10, 1532188), (14, 1094420), (20, 766094), (28, 547210), (35, 437768), (40, 383047), (56, 273605), (70, 218884), (140, 109442), (280, 54721)]