499495220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{509689}}^1$

素因数の和:509712

約数の個数: 36

約数和(自身を含む): 1220197860

約数和(自身を除く): 720702640

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 509689, 1019378, 2038756, 2548445, 3567823, 5096890, 7135646, 10193780, 14271292, 17839115, 24974761, 35678230, 49949522, 71356460, 99899044, 124873805, 249747610, 499495220]

約数ペア:

[(1, 499495220), (2, 249747610), (4, 124873805), (5, 99899044), (7, 71356460), (10, 49949522), (14, 35678230), (20, 24974761), (28, 17839115), (35, 14271292), (49, 10193780), (70, 7135646), (98, 5096890), (140, 3567823), (196, 2548445), (245, 2038756), (490, 1019378), (980, 509689)]