19517080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44357}}^1$

素因数の和:44379

約数の個数: 32

約数和(自身を含む): 47906640

約数和(自身を除く): 28389560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44357, 88714, 177428, 221785, 354856, 443570, 487927, 887140, 975854, 1774280, 1951708, 2439635, 3903416, 4879270, 9758540, 19517080]

約数ペア:

[(1, 19517080), (2, 9758540), (4, 4879270), (5, 3903416), (8, 2439635), (10, 1951708), (11, 1774280), (20, 975854), (22, 887140), (40, 487927), (44, 443570), (55, 354856), (88, 221785), (110, 177428), (220, 88714), (440, 44357)]