1320806720

素因数分解:

$2^6\times 5^1\times {\mathrm{4127521}}^1$

素因数の和:4127538

約数の個数: 28

約数和(自身を含む): 3145171764

約数和(自身を除く): 1824365044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 4127521, 8255042, 16510084, 20637605, 33020168, 41275210, 66040336, 82550420, 132080672, 165100840, 264161344, 330201680, 660403360, 1320806720]

約数ペア:

[(1, 1320806720), (2, 660403360), (4, 330201680), (5, 264161344), (8, 165100840), (10, 132080672), (16, 82550420), (20, 66040336), (32, 41275210), (40, 33020168), (64, 20637605), (80, 16510084), (160, 8255042), (320, 4127521)]