279346620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{665111}}^1$

素因数の和:665130

約数の個数: 48

約数和(自身を含む): 893910528

約数和(自身を除く): 614563908

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, 665111, 1330222, 1995333, 2660444, 3325555, 3990666, 4655777, 6651110, 7981332, 9311554, 9976665, 13302220, 13967331, 18623108, 19953330, 23278885, 27934662, 39906660, 46557770, 55869324, 69836655, 93115540, 139673310, 279346620]

約数ペア:

[(1, 279346620), (2, 139673310), (3, 93115540), (4, 69836655), (5, 55869324), (6, 46557770), (7, 39906660), (10, 27934662), (12, 23278885), (14, 19953330), (15, 18623108), (20, 13967331), (21, 13302220), (28, 9976665), (30, 9311554), (35, 7981332), (42, 6651110), (60, 4655777), (70, 3990666), (84, 3325555), (105, 2660444), (140, 1995333), (210, 1330222), (420, 665111)]