218366540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{222823}}^1$

素因数の和:222846

約数の個数: 36

約数和(自身を含む): 533440656

約数和(自身を除く): 315074116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 222823, 445646, 891292, 1114115, 1559761, 2228230, 3119522, 4456460, 6239044, 7798805, 10918327, 15597610, 21836654, 31195220, 43673308, 54591635, 109183270, 218366540]

約数ペア:

[(1, 218366540), (2, 109183270), (4, 54591635), (5, 43673308), (7, 31195220), (10, 21836654), (14, 15597610), (20, 10918327), (28, 7798805), (35, 6239044), (49, 4456460), (70, 3119522), (98, 2228230), (140, 1559761), (196, 1114115), (245, 891292), (490, 445646), (980, 222823)]