20552620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{907}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 47593728

約数和(自身を除く): 27041108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 907, 1030, 1133, 1814, 2060, 2266, 3628, 4532, 4535, 5665, 9070, 9977, 11330, 18140, 19954, 22660, 39908, 49885, 93421, 99770, 186842, 199540, 373684, 467105, 934210, 1027631, 1868420, 2055262, 4110524, 5138155, 10276310, 20552620]

約数ペア:

[(1, 20552620), (2, 10276310), (4, 5138155), (5, 4110524), (10, 2055262), (11, 1868420), (20, 1027631), (22, 934210), (44, 467105), (55, 373684), (103, 199540), (110, 186842), (206, 99770), (220, 93421), (412, 49885), (515, 39908), (907, 22660), (1030, 19954), (1133, 18140), (1814, 11330), (2060, 9977), (2266, 9070), (3628, 5665), (4532, 4535)]