204968820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{488021}}^1$

素因数の和:488040

約数の個数: 48

約数和(自身を含む): 655901568

約数和(自身を除く): 450932748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 488021, 976042, 1464063, 1952084, 2440105, 2928126, 3416147, 4880210, 5856252, 6832294, 7320315, 9760420, 10248441, 13664588, 14640630, 17080735, 20496882, 29281260, 34161470, 40993764, 51242205, 68322940, 102484410, 204968820]

約数ペア:

[(1, 204968820), (2, 102484410), (3, 68322940), (4, 51242205), (5, 40993764), (6, 34161470), (7, 29281260), (10, 20496882), (12, 17080735), (14, 14640630), (15, 13664588), (20, 10248441), (21, 9760420), (28, 7320315), (30, 6832294), (35, 5856252), (42, 4880210), (60, 3416147), (70, 2928126), (84, 2440105), (105, 1952084), (140, 1464063), (210, 976042), (420, 488021)]