28290185

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{373}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 42653952

約数和(自身を除く): 14363767

約数列:

[1, 5, 7, 11, 35, 55, 77, 197, 373, 385, 985, 1379, 1865, 2167, 2611, 4103, 6895, 10835, 13055, 15169, 20515, 28721, 73481, 75845, 143605, 367405, 514367, 808291, 2571835, 4041455, 5658037, 28290185]

約数ペア:

[(1, 28290185), (5, 5658037), (7, 4041455), (11, 2571835), (35, 808291), (55, 514367), (77, 367405), (197, 143605), (373, 75845), (385, 73481), (985, 28721), (1379, 20515), (1865, 15169), (2167, 13055), (2611, 10835), (4103, 6895)]