64887520

素因数分解:

$2^5\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1321}}^1$

素因数の和:1643

約数の個数: 48

約数和(自身を含む): 153912528

約数和(自身を除く): 89025008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 307, 614, 1228, 1321, 1535, 2456, 2642, 3070, 4912, 5284, 6140, 6605, 9824, 10568, 12280, 13210, 21136, 24560, 26420, 42272, 49120, 52840, 105680, 211360, 405547, 811094, 1622188, 2027735, 3244376, 4055470, 6488752, 8110940, 12977504, 16221880, 32443760, 64887520]

約数ペア:

[(1, 64887520), (2, 32443760), (4, 16221880), (5, 12977504), (8, 8110940), (10, 6488752), (16, 4055470), (20, 3244376), (32, 2027735), (40, 1622188), (80, 811094), (160, 405547), (307, 211360), (614, 105680), (1228, 52840), (1321, 49120), (1535, 42272), (2456, 26420), (2642, 24560), (3070, 21136), (4912, 13210), (5284, 12280), (6140, 10568), (6605, 9824)]