77895980

素因数分解:

$2^2\times 5^1\times {\mathrm{941}}^1\times {\mathrm{4139}}^1$

素因数の和:5089

約数の個数: 24

約数和(自身を含む): 163794960

約数和(自身を除く): 85898980

約数列:

[1, 2, 4, 5, 10, 20, 941, 1882, 3764, 4139, 4705, 8278, 9410, 16556, 18820, 20695, 41390, 82780, 3894799, 7789598, 15579196, 19473995, 38947990, 77895980]

約数ペア:

[(1, 77895980), (2, 38947990), (4, 19473995), (5, 15579196), (10, 7789598), (20, 3894799), (941, 82780), (1882, 41390), (3764, 20695), (4139, 18820), (4705, 16556), (8278, 9410)]