78964180

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{30139}}^1$

素因数の和:30279

約数の個数: 24

約数和(自身を含む): 167096160

約数和(自身を除く): 88131980

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 30139, 60278, 120556, 150695, 301390, 602780, 3948209, 7896418, 15792836, 19741045, 39482090, 78964180]

約数ペア:

[(1, 78964180), (2, 39482090), (4, 19741045), (5, 15792836), (10, 7896418), (20, 3948209), (131, 602780), (262, 301390), (524, 150695), (655, 120556), (1310, 60278), (2620, 30139)]