66078380

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{6491}}^1$

素因数の和:7009

約数の個数: 24

約数和(自身を含む): 139058640

約数和(自身を除く): 72980260

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 6491, 10180, 12982, 25964, 32455, 64910, 129820, 3303919, 6607838, 13215676, 16519595, 33039190, 66078380]

約数ペア:

[(1, 66078380), (2, 33039190), (4, 16519595), (5, 13215676), (10, 6607838), (20, 3303919), (509, 129820), (1018, 64910), (2036, 32455), (2545, 25964), (5090, 12982), (6491, 10180)]