64791040

素因数分解:

$2^9\times 5^1\times {\mathrm{25309}}^1$

素因数の和:25332

約数の個数: 40

約数和(自身を含む): 155352780

約数和(自身を除く): 90561740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 25309, 50618, 101236, 126545, 202472, 253090, 404944, 506180, 809888, 1012360, 1619776, 2024720, 3239552, 4049440, 6479104, 8098880, 12958208, 16197760, 32395520, 64791040]

約数ペア:

[(1, 64791040), (2, 32395520), (4, 16197760), (5, 12958208), (8, 8098880), (10, 6479104), (16, 4049440), (20, 3239552), (32, 2024720), (40, 1619776), (64, 1012360), (80, 809888), (128, 506180), (160, 404944), (256, 253090), (320, 202472), (512, 126545), (640, 101236), (1280, 50618), (2560, 25309)]