20208968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4519}}^1$

素因数の和:4581

約数の個数: 32

約数和(自身を含む): 41764800

約数和(自身を除く): 21555832

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4519, 9038, 18076, 36152, 58747, 117494, 194317, 234988, 388634, 469976, 777268, 1554536, 2526121, 5052242, 10104484, 20208968]

約数ペア:

[(1, 20208968), (2, 10104484), (4, 5052242), (8, 2526121), (13, 1554536), (26, 777268), (43, 469976), (52, 388634), (86, 234988), (104, 194317), (172, 117494), (344, 58747), (559, 36152), (1118, 18076), (2236, 9038), (4472, 4519)]