1036720640

素因数分解:

$2^9\times 5^1\times {\mathrm{404969}}^1$

素因数の和:404992

約数の個数: 40

約数和(自身を含む): 2485705860

約数和(自身を除く): 1448985220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 404969, 809938, 1619876, 2024845, 3239752, 4049690, 6479504, 8099380, 12959008, 16198760, 25918016, 32397520, 51836032, 64795040, 103672064, 129590080, 207344128, 259180160, 518360320, 1036720640]

約数ペア:

[(1, 1036720640), (2, 518360320), (4, 259180160), (5, 207344128), (8, 129590080), (10, 103672064), (16, 64795040), (20, 51836032), (32, 32397520), (40, 25918016), (64, 16198760), (80, 12959008), (128, 8099380), (160, 6479504), (256, 4049690), (320, 3239752), (512, 2024845), (640, 1619876), (1280, 809938), (2560, 404969)]