19456400

素因数分解:

$2^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{383}}^1$

素因数の和:528

約数の個数: 60

約数和(自身を含む): 47235072

約数和(自身を除く): 27778672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 127, 200, 254, 383, 400, 508, 635, 766, 1016, 1270, 1532, 1915, 2032, 2540, 3064, 3175, 3830, 5080, 6128, 6350, 7660, 9575, 10160, 12700, 15320, 19150, 25400, 30640, 38300, 48641, 50800, 76600, 97282, 153200, 194564, 243205, 389128, 486410, 778256, 972820, 1216025, 1945640, 2432050, 3891280, 4864100, 9728200, 19456400]

約数ペア:

[(1, 19456400), (2, 9728200), (4, 4864100), (5, 3891280), (8, 2432050), (10, 1945640), (16, 1216025), (20, 972820), (25, 778256), (40, 486410), (50, 389128), (80, 243205), (100, 194564), (127, 153200), (200, 97282), (254, 76600), (383, 50800), (400, 48641), (508, 38300), (635, 30640), (766, 25400), (1016, 19150), (1270, 15320), (1532, 12700), (1915, 10160), (2032, 9575), (2540, 7660), (3064, 6350), (3175, 6128), (3830, 5080)]