27730780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1637}}^1$

素因数の和:1675

約数の個数: 72

約数和(自身を含む): 73198944

約数和(自身を除く): 45468164

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1637, 1694, 2420, 3274, 3388, 4235, 6548, 8185, 8470, 11459, 16370, 16940, 18007, 22918, 32740, 36014, 45836, 57295, 72028, 90035, 114590, 126049, 180070, 198077, 229180, 252098, 360140, 396154, 504196, 630245, 792308, 990385, 1260490, 1386539, 1980770, 2520980, 2773078, 3961540, 5546156, 6932695, 13865390, 27730780]

約数ペア:

[(1, 27730780), (2, 13865390), (4, 6932695), (5, 5546156), (7, 3961540), (10, 2773078), (11, 2520980), (14, 1980770), (20, 1386539), (22, 1260490), (28, 990385), (35, 792308), (44, 630245), (55, 504196), (70, 396154), (77, 360140), (110, 252098), (121, 229180), (140, 198077), (154, 180070), (220, 126049), (242, 114590), (308, 90035), (385, 72028), (484, 57295), (605, 45836), (770, 36014), (847, 32740), (1210, 22918), (1540, 18007), (1637, 16940), (1694, 16370), (2420, 11459), (3274, 8470), (3388, 8185), (4235, 6548)]