65656520

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3343}}^1$

素因数の和:3845

約数の個数: 32

約数和(自身を含む): 148072320

約数和(自身を除く): 82415800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3343, 3928, 4910, 6686, 9820, 13372, 16715, 19640, 26744, 33430, 66860, 133720, 1641413, 3282826, 6565652, 8207065, 13131304, 16414130, 32828260, 65656520]

約数ペア:

[(1, 65656520), (2, 32828260), (4, 16414130), (5, 13131304), (8, 8207065), (10, 6565652), (20, 3282826), (40, 1641413), (491, 133720), (982, 66860), (1964, 33430), (2455, 26744), (3343, 19640), (3928, 16715), (4910, 13372), (6686, 9820)]