28667210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20047}}^1$

素因数の和:20078

約数の個数: 32

約数和(自身を含む): 60625152

約数和(自身を除く): 31957942

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 20047, 40094, 100235, 200470, 220517, 260611, 441034, 521222, 1102585, 1303055, 2205170, 2606110, 2866721, 5733442, 14333605, 28667210]

約数ペア:

[(1, 28667210), (2, 14333605), (5, 5733442), (10, 2866721), (11, 2606110), (13, 2205170), (22, 1303055), (26, 1102585), (55, 521222), (65, 441034), (110, 260611), (130, 220517), (143, 200470), (286, 100235), (715, 40094), (1430, 20047)]