72416540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{517261}}^1$

素因数の和:517277

約数の個数: 24

約数和(自身を含む): 173800032

約数和(自身を除く): 101383492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 517261, 1034522, 2069044, 2586305, 3620827, 5172610, 7241654, 10345220, 14483308, 18104135, 36208270, 72416540]

約数ペア:

[(1, 72416540), (2, 36208270), (4, 18104135), (5, 14483308), (7, 10345220), (10, 7241654), (14, 5172610), (20, 3620827), (28, 2586305), (35, 2069044), (70, 1034522), (140, 517261)]