64946320

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1667}}^1$

素因数の和:2167

約数の個数: 40

約数和(自身を含む): 151401024

約数和(自身を除く): 86454704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1667, 1948, 2435, 3334, 3896, 4870, 6668, 7792, 8335, 9740, 13336, 16670, 19480, 26672, 33340, 38960, 66680, 133360, 811829, 1623658, 3247316, 4059145, 6494632, 8118290, 12989264, 16236580, 32473160, 64946320]

約数ペア:

[(1, 64946320), (2, 32473160), (4, 16236580), (5, 12989264), (8, 8118290), (10, 6494632), (16, 4059145), (20, 3247316), (40, 1623658), (80, 811829), (487, 133360), (974, 66680), (1667, 38960), (1948, 33340), (2435, 26672), (3334, 19480), (3896, 16670), (4870, 13336), (6668, 9740), (7792, 8335)]