661186540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4722761}}^1$

素因数の和:4722777

約数の個数: 24

約数和(自身を含む): 1586848032

約数和(自身を除く): 925661492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4722761, 9445522, 18891044, 23613805, 33059327, 47227610, 66118654, 94455220, 132237308, 165296635, 330593270, 661186540]

約数ペア:

[(1, 661186540), (2, 330593270), (4, 165296635), (5, 132237308), (7, 94455220), (10, 66118654), (14, 47227610), (20, 33059327), (28, 23613805), (35, 18891044), (70, 9445522), (140, 4722761)]