213080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{761}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 548640

約数和(自身を除く): 335560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 761, 1522, 3044, 3805, 5327, 6088, 7610, 10654, 15220, 21308, 26635, 30440, 42616, 53270, 106540, 213080]

約数ペア:

[(1, 213080), (2, 106540), (4, 53270), (5, 42616), (7, 30440), (8, 26635), (10, 21308), (14, 15220), (20, 10654), (28, 7610), (35, 6088), (40, 5327), (56, 3805), (70, 3044), (140, 1522), (280, 761)]