65314420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{439}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 141482880

約数和(自身を除く): 76168460

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 173, 215, 346, 430, 439, 692, 860, 865, 878, 1730, 1756, 2195, 3460, 4390, 7439, 8780, 14878, 18877, 29756, 37195, 37754, 74390, 75508, 75947, 94385, 148780, 151894, 188770, 303788, 377540, 379735, 759470, 1518940, 3265721, 6531442, 13062884, 16328605, 32657210, 65314420]

約数ペア:

[(1, 65314420), (2, 32657210), (4, 16328605), (5, 13062884), (10, 6531442), (20, 3265721), (43, 1518940), (86, 759470), (172, 379735), (173, 377540), (215, 303788), (346, 188770), (430, 151894), (439, 148780), (692, 94385), (860, 75947), (865, 75508), (878, 74390), (1730, 37754), (1756, 37195), (2195, 29756), (3460, 18877), (4390, 14878), (7439, 8780)]