21787258880

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1063831}}^1$

素因数の和:1063860

約数の個数: 52

約数和(自身を含む): 52283087472

約数和(自身を除く): 30495828592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 10240, 20480, 1063831, 2127662, 4255324, 5319155, 8510648, 10638310, 17021296, 21276620, 34042592, 42553240, 68085184, 85106480, 136170368, 170212960, 272340736, 340425920, 544681472, 680851840, 1089362944, 1361703680, 2178725888, 2723407360, 4357451776, 5446814720, 10893629440, 21787258880]

約数ペア:

[(1, 21787258880), (2, 10893629440), (4, 5446814720), (5, 4357451776), (8, 2723407360), (10, 2178725888), (16, 1361703680), (20, 1089362944), (32, 680851840), (40, 544681472), (64, 340425920), (80, 272340736), (128, 170212960), (160, 136170368), (256, 85106480), (320, 68085184), (512, 42553240), (640, 34042592), (1024, 21276620), (1280, 17021296), (2048, 10638310), (2560, 8510648), (4096, 5319155), (5120, 4255324), (10240, 2127662), (20480, 1063831)]