31641680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{56503}}^1$

素因数の和:56523

約数の個数: 40

約数和(自身を含む): 84077952

約数和(自身を除く): 52436272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 56503, 113006, 226012, 282515, 395521, 452024, 565030, 791042, 904048, 1130060, 1582084, 1977605, 2260120, 3164168, 3955210, 4520240, 6328336, 7910420, 15820840, 31641680]

約数ペア:

[(1, 31641680), (2, 15820840), (4, 7910420), (5, 6328336), (7, 4520240), (8, 3955210), (10, 3164168), (14, 2260120), (16, 1977605), (20, 1582084), (28, 1130060), (35, 904048), (40, 791042), (56, 565030), (70, 452024), (80, 395521), (112, 282515), (140, 226012), (280, 113006), (560, 56503)]