280382340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{667577}}^1$

素因数の和:667596

約数の個数: 48

約数和(自身を含む): 897224832

約数和(自身を除く): 616842492

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, 667577, 1335154, 2002731, 2670308, 3337885, 4005462, 4673039, 6675770, 8010924, 9346078, 10013655, 13351540, 14019117, 18692156, 20027310, 23365195, 28038234, 40054620, 46730390, 56076468, 70095585, 93460780, 140191170, 280382340]

約数ペア:

[(1, 280382340), (2, 140191170), (3, 93460780), (4, 70095585), (5, 56076468), (6, 46730390), (7, 40054620), (10, 28038234), (12, 23365195), (14, 20027310), (15, 18692156), (20, 14019117), (21, 13351540), (28, 10013655), (30, 9346078), (35, 8010924), (42, 6675770), (60, 4673039), (70, 4005462), (84, 3337885), (105, 2670308), (140, 2002731), (210, 1335154), (420, 667577)]