7855540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5101}}^1$

素因数の和:5128

約数の個数: 48

約数和(自身を含む): 20571264

約数和(自身を除く): 12715724

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 5101, 10202, 20404, 25505, 35707, 51010, 56111, 71414, 102020, 112222, 142828, 178535, 224444, 280555, 357070, 392777, 561110, 714140, 785554, 1122220, 1571108, 1963885, 3927770, 7855540]

約数ペア:

[(1, 7855540), (2, 3927770), (4, 1963885), (5, 1571108), (7, 1122220), (10, 785554), (11, 714140), (14, 561110), (20, 392777), (22, 357070), (28, 280555), (35, 224444), (44, 178535), (55, 142828), (70, 112222), (77, 102020), (110, 71414), (140, 56111), (154, 51010), (220, 35707), (308, 25505), (385, 20404), (770, 10202), (1540, 5101)]