271428780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{646259}}^1$

素因数の和:646278

約数の個数: 48

約数和(自身を含む): 868573440

約数和(自身を除く): 597144660

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, 646259, 1292518, 1938777, 2585036, 3231295, 3877554, 4523813, 6462590, 7755108, 9047626, 9693885, 12925180, 13571439, 18095252, 19387770, 22619065, 27142878, 38775540, 45238130, 54285756, 67857195, 90476260, 135714390, 271428780]

約数ペア:

[(1, 271428780), (2, 135714390), (3, 90476260), (4, 67857195), (5, 54285756), (6, 45238130), (7, 38775540), (10, 27142878), (12, 22619065), (14, 19387770), (15, 18095252), (20, 13571439), (21, 12925180), (28, 9693885), (30, 9047626), (35, 7755108), (42, 6462590), (60, 4523813), (70, 3877554), (84, 3231295), (105, 2585036), (140, 1938777), (210, 1292518), (420, 646259)]