1620007040

素因数分解:

$2^7\times 5^1\times {\mathrm{2531261}}^1$

素因数の和:2531280

約数の個数: 32

約数和(自身を含む): 3872830860

約数和(自身を除く): 2252823820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2531261, 5062522, 10125044, 12656305, 20250088, 25312610, 40500176, 50625220, 81000352, 101250440, 162000704, 202500880, 324001408, 405001760, 810003520, 1620007040]

約数ペア:

[(1, 1620007040), (2, 810003520), (4, 405001760), (5, 324001408), (8, 202500880), (10, 162000704), (16, 101250440), (20, 81000352), (32, 50625220), (40, 40500176), (64, 25312610), (80, 20250088), (128, 12656305), (160, 10125044), (320, 5062522), (640, 2531261)]