268897960

素因数分解:

$2^3\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{4057}}^1$

素因数の和:5725

約数の個数: 32

約数和(自身を含む): 605534760

約数和(自身を除く): 336636800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1657, 3314, 4057, 6628, 8114, 8285, 13256, 16228, 16570, 20285, 32456, 33140, 40570, 66280, 81140, 162280, 6722449, 13444898, 26889796, 33612245, 53779592, 67224490, 134448980, 268897960]

約数ペア:

[(1, 268897960), (2, 134448980), (4, 67224490), (5, 53779592), (8, 33612245), (10, 26889796), (20, 13444898), (40, 6722449), (1657, 162280), (3314, 81140), (4057, 66280), (6628, 40570), (8114, 33140), (8285, 32456), (13256, 20285), (16228, 16570)]