844520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 1948320

約数和(自身を除く): 1103800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 491, 860, 982, 1720, 1964, 2455, 3928, 4910, 9820, 19640, 21113, 42226, 84452, 105565, 168904, 211130, 422260, 844520]

約数ペア:

[(1, 844520), (2, 422260), (4, 211130), (5, 168904), (8, 105565), (10, 84452), (20, 42226), (40, 21113), (43, 19640), (86, 9820), (172, 4910), (215, 3928), (344, 2455), (430, 1964), (491, 1720), (860, 982)]